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This Article Contains Spoilers - WARNING: This article contains major spoilers. If you do not wish to know vital information on plot / character elements in a story, you may not wish to read beyond this warning: We hold no responsibility for any negative effects these facts may have on your enjoyment of said media should you continue. That is all.

Hero Overview

Hello! I'm the Doctor!
~ The Doctor's most frequent greeting.
In 900 years of time and space, I've never met anyone who wasn't important.
~ The Eleventh Doctor
He's like fire and ice and rage. He's like the night, and the storm in the heart of the sun. He's ancient and forever. He burns at the center of time and he can see the turn of the universe. And... he's wonderful.
~ Tim Latimer describing the Doctor
There have been many attempts to conquer the Earth. I've lost count. Not one of them has succeeded. Not a single one. They all lost and burned and ran. That's who I am.
~ The Twelfth Doctor
When you run with the Doctor, it feels like it'll never end. But however hard you try you can't run forever. Everybody knows that everybody dies and nobody knows it like the Doctor. But I do think that all the skies of all the worlds might just turn dark if he ever for one moment, accepts it. Everybody knows that everybody dies. But not every day. Not today. Some days are special. Some days are so, so blessed. Some days, nobody dies at all. Now and then, every once in a very long while, every day in a million days, when the wind stands fair, and the Doctor comes to call... everybody lives.
~ River Song describing the Doctor
Nice to meet you Rose. Run for your life!
~ The Ninth Doctor to Rose Tyler.

"The Doctor" is the titular main protagonist of the popular sci-fi TV show Doctor Who as well as the many comic books and spin-offs spawned from its success. He/She is a Time Lord, a human-like alien who protects the Earth, along with countless other worlds, throughout time and space, from such menaces as the Daleks and The Master (an evil Time Lord who was a childhood friend of the Doctor). Unlike the rest of his/her race of time travellers, he/she uses time travel to interfere with events, which is forbade by his/her race, in an effort to protect civilizations from a variety of threats. He/She is famous for his/her time traveling ship called the TARDIS (Time and Relative Dimensions in Space), his/her sonic screwdriver and the ability to regenerate into a new form with a slightly different personality if he/she is either injured or on the verge of death, though his/her species is normally able to regenerate only twelve times. To date, the Doctor has thirteen regenerations, the thirteen being given to him/her along with a new set of twelve regenerations.

The Doctor has been portrayed by at least seventeen different actors over the course of the series. His previous portrayer Matt Smith, announced that he would leave the series after the 2013 Christmas Special, The Time of the Doctor. His most recent portrayer, Peter Capaldi, took over the role at that point. However in the 2017 Christmas Special, the Doctor regenerated into a female and is portrayed by Jodie Whittaker.

Despite being the protagonist, there have been some episodes of the series where the Doctor is a supporting/minor character and instead one of his/her companions or a guest character takes the role of protagonist for that episode.


Early life

There were a variety of different and contradictory accounts of the Doctor's early life before their travels with Susan. Most often, the Doctor had always been a Time Lord from Gallifrey and had not regenerated before leaving in the TARDIS.

However, the Doctor's own memories were unclear regarding their early life and origins, and several accounts suggested that they had non-Gallifreyan origins (human or otherwise) or incarnations before the one who fled Gallifrey.

The many contradictory accounts of the Doctor's early life were equally and paradoxically true due to the Doctor's biodata being retroactively manipulated by a number of factors, such as; the Other, Omega, Faction Paradox, subconscious regeneration influences, and the impact of Doctor's own adventures through time.

In TV Series

Upon reaching adulthood, The Doctor (as a male) had a family and gained a granddaughter named Susan.

They travel through time and space in a spacecraft called the TARDIS, frequently with human companions, averting any crisis they come across using science, technology, and wit. As a Time Lord, he/she has the ability to regenerate, or change his/her appearance and personality whenever they are injured or on the verge of death. Although the series is titled Doctor Who, this is not the character's name: they are only ever referred to as The Doctor and their real name remains mysteriously unknown. From the ninth to eleventh incarnation, the Doctor was believed to be the last surviving member of the Time Lords, and was under the impression that he, during his War Doctor incarnation, had destroyed Gallifrey in order to end a devastating Time War against the Daleks. He later learned differently, when the Tenth and Eleventh Doctor had the opportunity with their wartime incarnation, to save Gallifrey.

The Time Lords of Gallifrey imposed a limit as to how many regenerations one may have before final death - twelve changes, or thirteen incarnations. Due to the "War Doctor" not accepting the name Doctor, and the Tenth Doctor undergoing an aborted regeneration at one point, the Eleventh Doctor believed himself to be the last incarnation. At the nick of time, the Time Lords bestowed upon him a new regeneration cycle, allowing him to ultimately transform into the Twelfth Doctor.

Powers and Abilities

  • Regeneration: When a Time Lord is dying - either due to old age or mortal injury - they are able to use a process called regeneration. Regeneration is a process in which all the cells in the body are replaced with new ones, with the ultimate result being the Time Lord having a completely new appearance. Even though the Doctor has changed numerous times, he still remains the same person inside and remains a force for good, if neutral, even though his priorities, personality and memories sometimes change, due to the fact that regeneration alters his brain chemistry as well. The regeneration process has been portrayed as either a simple fade between two incarnations, a glowing effect that revealed the next incarnation, or one incarnation morphing into the next. In recent portrayals, it has been portrayed as the incarnation generating or radiating a gold, orange or even white fire-like energy while transforming into the next incarnation. Oftentimes, the regeneration energy manifests in an explosive discharge which could damage or destroy anything or anyone around it. The brunt of the discharge is directed through the hands and head and could be made more powerful and violent if more energy was built up through stalling the process, further accompanied by a powerful shockwave if a new set of regenerations was given. The Doctor has been able to generate this regeneration energy at will in fiery wisps or as a yellow light, using it to heal non-life-threatening injuries and somewhat stall certain terminal conditions. However, all Time Lords have a finite amount of this energy, which means using it in this manner could be lessen the ability to regenerate. Eventually, the Doctor will lose the ability to regenerate after twelve or thirteen regenerations and incarnations, though he was later given a new set of regenerations by the Time Lords, the process of which caused a giant discharge of regeneration energy and a shockwave that expanded several miles. The regeneration process could also cause a brief period of emotion or mental instability, erratic behavior, mood swings, random spasms, lack of motor skills, confusion, memory loss, and unconsciousness, which is called "regeneration trauma". This period lasted for hours and also allowed the Doctor temporary abilities, such as a healing factor and superhuman strength, though which ability he receives is highly random. However, some regenerations happen without any period of trauma, such as the Eighth Doctor's transformation into the War Doctor.
  • Superhuman Intelligence: The Doctor is vastly more intelligent than most beings in the universe. He has an almost universal knowledge of nearly every species in the universe and has learned many skills from traveling throughout human and alien history. The Doctor is an expert on technology, chemistry, physics, mathematics, history, non-human biology, genetics and nearly every field of science (except ironically human medicine, as he is says he is not a medical doctor). He has created advanced scientific equipment out of ordinary junk and improvised strategic plans to save whole planets and the universe in short amounts of time. The Doctor has used deception, manipulation, and trickery to outsmart his enemies all his lives.
  • Omnilingualism: He is able to speak and understand virtually every language in existence. Although his ship, the TARDIS, is said to translate for his companions, the Doctor possesses this ability on his own. He can even communicate with some animals, such as cats and even dinosaurs.
  • Skilled Combatant: The Doctor is an expert in swordfighting, marksmanship, and martial arts (especially Venusian Aikido) from having picked up these skills as a time-traveler, although he rarely uses them and would rather solve things peacefully or outsmart his enemies instead.
  • Superhuman Strength: He possess above-average strength, as he once broke down steel doors, chopped a brick in half and ripped a stone arm off a statue. This appears to be a random occurrence and an immediate after-effect of his regeneration, as such abilities only last 15 hours after the occurrence. However, some incarnations of the Doctor have demonstrated above-average strength in his adventures when necessary.
  • Superhuman Senses: He is capable of sensing time disturbances and perceiving all possible timelines, as well as having senses attuned to gravity, spatial location, and acceleration/speed. The Doctor further has enhanced smell (sharp enough to identify the atmospheric composition), taste (can identify an age and chemical composition of an object by licking), hearing, and eyesight (can read a name-tag from several hundred yards away, as well as see in the night like a cat, he is able to play a record of what he sees, for a better idea of the situation and to see what he has overlooked) that is superior to humans. He is stated to be able to feel a planet's rotations while on it.
  • Superhuman Durability: While the level of his durability is undefined, he has been able to survive harsh conditions which include (but not limited to), the low-pressure and coldness of space without a suit (though he still needs air), subzero temperatures (according to the Doctor at least -328 degrees Fahrenheit), extreme heats of at least 525 degrees Fahrenheit, multiple electric shocks, X-ray radiation, and falls from hundreds of feet (only in conscious), though the Fourth Doctor was injured by such fall to the point where he regenerated into his Fifth incarnation. He is also more resilient to radiation, allowing him to be barely harmed by an x-ray machine's radiation, though it was 500,000 rads of radiation bolt was what caused the Tenth Doctor to regenerate into the Eleventh in what seemed to be hours after exposure. He is immune to alcohol or wine. Normal sleep-inducing drugs take twice as long to take their effect on him as it does a normal human being and are not able to keep him asleep for long.
  • Enhanced Lung Capacity: The Doctor has two hearts from being a Time Lord. His alien respiratory system allows him to hold his breath for 20 minutes, remain buoyant in water, and survive strangulation. His body also has lower need for oxygen and can handle high levels of carbon dioxide that would kill a human. He can even hold his breath in the vacuum of space and survive without a suit for some time.
  • Superhuman Endurance: Needs only an hour of sleep a day, and tires much less than a human.
  • Superhuman Speed: Is stated by the Doctor himself to have reflexes ten times faster than a human being. This is proven when he was able to move across a giant spinning fan. The Doctor has spent much of his adventures running away and dodging enemy weaponry while surviving unscathed.
  • Superhuman Healing: Besides regeneration, Time Lords heal much faster than humans, as well as a special ability to go into a healing coma which accelerates the healing process even faster. In the span of 15 hours after regeneration (according to the Doctor), he can regrow entire body parts and be seemingly immune to crippling pain. While the regeneration process started, other minor injuries can heal instantly.
  • Psychometric Telepathy: The Doctor is capable of using telepathy and related psychic abilities (e.g. memory control and hypnosis), via physical contact, usually by touching a person's head. He once used a headbutt to make a man named Craig know about his alien origins and incarnations instantly. He is highly resistant to psychic attacks, posession, and other effects targeting his mind. His psychic senses allowed him to use a telepathic satellite network to channel all of humanities hope when they all spoke and thought his name at the same time, resulting in him being able to recover completely from being aged into a old man and then into a deformed and diminutive creature. While using this accumulated psychic energy, he was glowing with a fiery blue aura that shielded him from energy bolts, allowed him to make the cage he was locked in vanish, made him able to fly and levitate, and even telekinetically disarm an opponent. However, he only had these powers for a few minutes before returning to normal.
  • Temporal Resistance: The Doctor is natually resistant to changes in space-time from being a Time Lord. He is able to retain memories of prior timelines, remember people and events who were erased from history, move in slowed or frozen time, has resistant to time-manipulation abilities, and be able to survive if anything happens that changes his personal history or past incarnations. He is also resistant to temporal disturbances, especially if he is at the epicenter of this change, such as when his supposed death at Lake Silcencio was averted and all of reality began to collapse.
  • Longevity: The Second Doctor stated that Time Lords can "live forever, barring accidents." Thanks to regeneration and his own natural longevity, the Doctor has lived for many centuries—his first incarnation alone existed for over 450 years. Time Lords, in general consider 700 years to be middle ages, though its unknown if that is for just one incarnation or their entire lives. By the time of the Seventh Doctor he has stated he is approximately 956 years old. However, the Ninth Doctor he says he has forgotten his age and restarts from 900 years, while the Eleventh Doctor guessed that he was 1,200, though he also said he had forgotten. By the time he has regenerated into the Twelfth Doctor he can be estimated to be at least 2,000 years old, if not older.
  • The TARDIS: The Doctor's time-machine that he stole from Gallifrey to travel with ever since his first incarnation, with the name standing for "Time And Relative Dimension(s) In Space". Although it takes the form of a British police public call box, the TARDIS is a highly advanced sentient alien spacecraft that is bigger on the inside due to being constructed from Time Lord dimensional transcendence science. The Doctor shares an unbreakable bond with the TARDIS and considers it to be his closest companion in all his incarnations.

The Doctors

First Doctor

The First Doctor

Our destiny is in the stars, so let's go and search for it.
~ The First Doctor in The Reign of Terror.

The First Doctor was played by William Hartnell, and would later by Richard Hurndall in The Five Doctors, and by David Bradley in Twice Upon a Time and Big Finish's First Doctor Adventures.

The First Doctor was the youngest incarnation of the Doctor, but had the most aged physical appearance, having grown old through a natural lifespan. This Doctor was an unreadable, guarded figure who was, at first, slow to trust newcomers who learnt of him. At heart though, the Doctor was a kind and mischievous figure. He was protective of the young women he took on as companions; they reminded him of his granddaughter, Susan, his very first companion. This Doctor was a brilliant, often short-tempered scientist and keen strategist. He used his signet ring to help get himself through ordeals due to his physical age impeding him. He stole a TARDIS and took his granddaughter with him, joyriding through all space and time, without a clue as to how to drive the thing.

After he and Susan were discovered by her teachers, Ian and Barbara, the Doctor kidnapped them to prevent them telling anyone. However, the Doctor regretted his hasty actions, and instead devoted his energies to returning them home. Over time, their influence led to the Doctor becoming a more compassionate and heroic figure, especially after encountering the Daleks. After he let Susan live with a man she loved, they took on Vicki, an energetic youngster who shared much in common with him. After Ian and Barbara found a way to return home, the Doctor and Vicki had gained a new companion in Steven Taylor, with whom the Doctor had a relatively uneasy relationship. Vicki eventually left the Doctor's company as well, during the Siege of Troy.

Shortly after this however, the Doctor, Steven and Katarina, a Trojan handmaiden, were embroiled in a lengthy battle with the Daleks, where Katarina gave her life to protect them, and they would take on security agent Sara, who also died ensuring the Daleks were defeated. This led Steven soon became bitter towards the Doctor, but would forgive him. They were then joined by Dodo Chaplet. Ultimately, Steven decided to stay to help a civilisation they had encountered, while Dodo later decided to remain home, while the aging Doctor found himself joined by Ben Jackson and Polly Wright.

Throughout his adventures, with a developing moral centre, the Doctor played deadly games with the Celestial Toymaker, he fooled Roman emperors, Mongol warlords and French revolutionaries, and he foiled each and every machination of the Daleks. After preventing the Cybermen from absorbing the Earth's energy, the Doctor felt his body “wearing a bit thin”. Initially frightened of the change, as seen in the 2017 Christmas Special Twice Upon a Time, he encountered a later incarnation, and was assured his future was in safe hands. Afterwards, the Doctor regenerated into his Second incarnation.

Second Doctor

The Second Doctor

Our lives are different to anybody else's. That's the exciting thing. No one in the universe can do what we're doing.
~ The Second Doctor to Victoria Waterfield, The Tomb of the Cybermen.

The Second Doctor was portrayed by Patrick Troughton.

The Second Doctor, in contrast to his preceding incarnation, was warm and wise. He was as surprised and frightened of alien menaces as those who faced them with him. He had a knack for manipulation and deception. His predecessor would refer to him as a "clown" due to his bumbling nature. He loved tootling on his recorder and carried around a 500-year diary, trying to record his travels, but ended up discarding it. He wore a big fur coat that dwarfed him, tying it closed with twine. A "cosmic hobo" with a Beatles-esque mop of black hair, he was forever getting himself in and out of trouble.

While "inheriting" Ben and Polly from his previous incarnation, the Second Doctor's closest companion was Jamie McCrimmon, a Scottish Highlander from the Battle of Culloden, who he shared a mutual bond of trust with. After Ben and Polly left them, they met Victoria Waterfield, who the Doctor was asked to look after due to the death of her father. After she found a new home, the Doctor gained an intellectual equal in prodigy Zoe Heriot. During his wanderings, he faced the Cybermen several times, as well as the Daleks, even attempting to bring about their "final end", but encountered new threats, such as the Great Intelligence and his Robot Yeti, and the "Ice Warriors".

In The War Games, while travelling with Jame and Zoe, the Doctor faced the "War Lords", who allied with one of his own people in their scheme to conquer the galaxy. Unable to defeat them alone, the Second Doctor was forced to summon the Time Lords for aid. He was soon separated from his companions, and forced to undergo regeneration - essentially submit to execution - by the Time Lords as punishment for interfering with the affairs of many worlds. However, some stories indicate that the Celestial Intervention Agency was able to stay the execution for a while in exchange for the Doctor providing his services to them, until he was eventually forced to regenerate in exile.

Third Doctor

The Third Doctor

Courage isn't just a matter of not being frightened, you know. It's being afraid and doing what you have to do, anyway.
~ The Third Doctor, Planet of the Daleks.

The Third Doctor was portrayed by Jon Pertwee and Tim Treolar in Big Finish's Third Doctor Adventures.

The Third Doctor was a more dashing figure than his predecessors. He was described by his first incarnation as a "dandy". He had a penchant for inventing gadgets and was skilled at martial arts, particularly Venusian aikido, and owned a vintage car named Bessie. Trapped on Earth without the memory of how to fix the TARDIS, the Doctor worked with UNIT as their scientific adviser, and could seem frustrated and bitter. However, his closest allies knew his deep compassion and scientific knowledge. He was also somewhat of an action man, using Venusian Akido where diplomacy was impossible.

His initially contentious relationship with Brigadier Lethbridge-Stewart softened into a close friendship during his exile on Earth, lasting through his future regenerations, despite not always agreeing with his actions. He also displayed great affection for his female companions, particularly Jo Grant. He was a gallant action hero who was very protective of his companions. His most common enemy was his childhood friend turned renegade, the Master, which whom he faced a friendly rivalry. He also faced the Nestene Consciousness and its Autons, as well as various invaders, including the "Silurians", the Daleks, the Axons and many others. For a time, he was also sent on missions across time and space by the Time Lords.

After battling Omega, the Time Lords granted the Doctor his freedom, and the Doctor set off a free man with Jo at his side, always making sure to return to Earth from time to time. Eventually, Jo left him, and the Doctor was alone until he ended up encountering feisty journalist Sarah Jane Smith. After travelling together for a while, radiation exposure from battling the giant Spiders of Metebelis III led to his regeneration, the price of correcting a mistake he had made in the past.

Fourth Doctor

The Fourth Doctor

Would you like a jelly baby?
~ The Fourth Doctor's usual greeting

The Fourth Doctor is portrayed by Tom Baker.

The Fourth Doctor was more eccentric than his previous incarnations and was the first to seem "young." Rarely without his very long scarf, he always carried jelly babies in his pockets, using them as bluffs, gifts and distractions—and occasionally snacks. He relied on his considerable charm, luck, and experience to get through bad situations. Although he retained his fondness for Earth, he ended his regular association with UNIT almost immediately upon his regeneration and only occasionally returned to the planet. However, he had not properly resigned from the position. He hated to work and preferred travelling but liked history. He usually travelled with only one companion at a time, except at the start and near the end of his life.

He initially travelled with Sarah and medic Harry Sullivan, although Harry soon left after encountering the Zygons in his own time. He and Sarah adventured for a long time, facing various horrific creatures and villains, such as the Osirian Sutekh, the brain of Morbius, the plant based Krynoid, and many more. A summons to Gallifrey caused their separation, whereupon the Doctor encountered the dying and vengeful Master. After travelling on his own, the Doctor ended up travelling with Leela, a tribal warrior who he tried to educate. While adventuring together, the Doctor gained further companionship in the form of the robot dog K9. Returning once more to Gallifrey to stop an invasion of Vardans, Leela and the original K9 stayed behind. On the White Guardian's orders, the Doctor sought the Key to Time with fellow Time Lady Romana and K9 Mark II. Once that search was concluded, the Doctor and Romana went on the run from the Black Guardian. The Doctor and K9 continued to travel with a regenerated Romana.

After many adventures, when they attempted to answer a Gallifreyan summons, the Doctor, Romana, and K9 accidentally passed into the pocket universe E-Space. During his travels in E-Space, the Doctor gained a new companion in the teenage maths genius Adric. Romana and K9 stayed behind in E-Space as the Doctor and Adric departed for his universe. There, they encountered a Trakenite named Nyssa and a human named Tegan. He regenerated as a result of a fall suffered during an encounter with the Master; on this unique occasion a faceless "in-between" incarnation of the Doctor known as the Watcher assisted in the regeneration.

This incarnation also featured in adverts for Prime Computer from 1974 to 1981.

Fifth Doctor

The Fifth Doctor

There should have been another way.
~ The Fifth Doctor often lamented killing enemies

The Fifth Doctor is portrayed by Peter Davison.

The Fifth Doctor was fond of cricket and wore a stick of celery on his lapel as a safety precaution for his allergy for certain gases in the Praxis range of the Spectrum. After a difficult regeneration, this Doctor displayed energy, compassion and innocence not seen in his predecessors. His character was very human and vulnerable. Like them, he used improvisation as the best way out of a tricky situation. The Fifth Doctor was the first incarnation since the First Doctor to go "hands free" and forgo the usage of a sonic screwdriver after having it destroyed. He occasionally wore glasses, even though he didn't need them; he only wore them to make himself look clever.

The Doctor initially found himself caught between Tegan's pessimism and Adric's arrogance. Stuck in the middle with him was usually Nyssa, who regularly had to stand as a voice of reason. After Adric died battling the Cybermen, the Doctor was plagued with guilt, and swore to never let another companion die on his watch. The Black Guardian returned, and tried to enact revenge on the Doctor by using stranded alien Turlough as an assassin, but the Doctor trusted him, and Turlough helped defeat the Guardian. However, after adventuring together for some time, Tegan left him for good after a brutal battle with the Daleks and Davros.

Soon after, Turlough left him when he found a way to return home, the Doctor travelled with American student Peri Brown. He was the first Doctor to sacrifice himself for another, when he and Peri were dying from Spectrox toxaemia; with only one dose of the antidote available, he gave her the cure rather than taking it himself.

Sixth Doctor

The Sixth Doctor.

I am a man of science and passion!
~ The Sixth Doctor

The Sixth Doctor is portrayed by Colin Baker (not related to Tom Baker.)

The Sixth Doctor was a grandiose and eloquent incarnation. He sported one of the Doctor's most eccentric outfits yet; a multi-coloured wardrobe, which was often commented upon, occasionally leading to him being mistaken for a jester. This Doctor loved a good quote, often making one he deemed appropriate during an adventure. He was also capable of violent action, much more so than his past lives, even seeing logic in murder. While seemingly arrogant, melodramatic and stubborn, at heart he was passionate, warm hearted and empathetic.

Like the Fourth Doctor, the Sixth Doctor spent most of his travels with a single companion at a time. His first companion was Peri Brown, with whom he had a very tumultuous relationship. It took considerable time for him and Peri to stop bickering and speak together on amiable terms, but the Doctor eventually became someone she could rely upon. A important part of his life was his trial by the Time Lords, where he was forcibly separated from Peri which turned out to be a coverup. He also discovered his prosecutor, the Valeyard, was his own dark side made manifest. He would be haunted by this revelation for a long time, putting off travelling with Mel Bush, who he had discovered he would eventually travel with, for fear of going down a dark path.

After the trial, as seen in Big Finish's stories, the Doctor's gentler side began to blossom largely due to travelling with Evelyn Smythe (an especially verbose university lecturer). Together, they were the first to encounter The Forge. He also travelled with Frobisher, a shapeshifting private detective who preferred the form of a penguin, both during and after his travels with Peri. He also travelled with a future companion, became reacquainted with Jago and Litefoot and travelled with Flip and Constance, two women from very different times. Eventually, the Doctor also began his inevitable travels with Mel, putting up with her attempts to put him on a diet.

Over the course of his life, as seen in Big Finish's The Last Adventure boxset, the Doctor was slowly manipulated by the Valeyard as part of his genocidal master plan. After discovering his life was dependent of the plan's success, the Doctor willingly ensured his fate by letting his TARDIS be snatched mid-flight by the Rani, causing him to regenerate.

Seventh Doctor

The Seventh Doctor

There are worlds out there where the sky is burning, and the sea's asleep, and the rivers dream; people made of smoke and cities made of song. Somewhere there's danger, somewhere there's injustice, and somewhere else the tea's getting cold. Come on, Ace. We've got work to do.
~ The Doctor in "Survival."

The Seventh Doctor is portrayed by Sylvester McCoy.

The Seventh Doctor had a voice touched by a Scottish burr. Starting out as a light hearted eccentric while travelling with Mel, the Doctor began to show his true colours, as a keen strategist and a planner of the highest order after taking on Ace, a troubled teenager.

The Seventh Doctor's ego and natural superiority as a Time Lord were his signature traits, often using force as a solution but never employing it himself; he often got his companions to do the deed. For all his manipulations, the Seventh Doctor wished to help heal his companions' psychological scars. Although he initially planned to take Ace home, they ultimately travelled together for several years, only for their strong bond to grow increasingly strained as secrets and death tore them apart.

In the Virgin New Adventures novels, following Ace's initial departure from the TARDIS, the Doctor become known as Time's Champion. Although he did many good deeds while under the title of Time's Champion, his manipulative ways and amoral decisions cost him dearly, leaving him questioning his actions and himself. In Big Finish's stories, he and Ace took on Hex, a young nurse whose past tied into his mistakes in dealing with the Forge, and led to the Doctor's war with the "Elder Gods" becoming more dangerous.

Eventually, the Doctor would spend the latter part of his life on his own, tying up unfinished business, such as Klein, a Nazi from another timeline, and retired from the niche of manipulation. Though wearisome, he decided he would return to Gallifrey when the Time Lords needed his assistance, but having grown complacent, he let his guard down at the wrong time and paid for it with his life. The Seventh Doctor was shot by gangsters, and was killed when his surgery went wrong.

Eighth Doctor

The Eighth Doctor.

Injustice is the rule, but I want justice. Suffering is the rule, but I want to end it. Despair accords with reality, but I insist on hope. I don't accept it because it is unacceptable. I say no.
~ The Eighth Doctor, in Camera Obsura.

The Eighth Doctor is portrayed by Paul McGann.

The Eighth Doctor showed a romantic and sensitive side not displayed by previous Doctors. Less morally flexible than his immediate predecessor, the Eighth Doctor lived a complicated and eventful life. The Doctor's life was haunted by the shadow of the Time War, both in the form of the War with the Enemy, and eventually The Last Great Time War. Due to involvement in the Time Wars, parallel universes, time paradoxes, and alternate timelines, his life was hard to piece together.

A common theme in the Eighth Doctor is amnesia; he experienced memory on the onset of the Seventh Doctor's regeneration (possibly due to complications the Seventh Doctor suffered during emergency surgery). Perhaps the Eighth Doctor's most notable spell of amnesia was throughout the second half of the novels, where at the conclusion of his involvement in The War, the Doctor was left without his past for over a century on Earth, and would only sometimes show glimpses of his former memories when he travelled in the Post War Universe.

An inherently happy adventurer, the Doctor fell in love with companions Grace Holloway and Charley Pollard. He experienced and appreciated very human emotions, from kissing Grace to providing psychological support for Izzy Sinclair. The Doctor always tried to remain a cheerful and pacifistic adventurer in spite of a hostile universe. Indeed, after the deaths of Lucie Miller, Tamsin Drew and his great grandson Alex, he would be left emotionally broken. However, the Doctor would recover the strength to face several vast schemes from the likes of the Dalek Time Controller, the Master and the Eminence, the Eleven and the Doom Coalition, and the Ravenous and Divine Intervention.

When the Last Great Time War erupted, this Doctor refused to take part, preferring to help without violence. The Doctor was accompanied in the early days by Bliss, whose life was altered by the Time War, and afterwards, he would travel on his own, becoming more frustrated when he was unable to help. After sustaining mortal injuries in a spaceship crash, he was given the rare opportunity to choose the form of his next life, and he chose to be a warrior in order to fight the Last Great Time War.

War Doctor

The War Doctor.

Time Lords of Gallifrey, Daleks of Skaro. I serve notice on you all. For too long I have stayed my hand. No more. Today you leave me no choice. Today this war will end. No more. No more.
~ The War Doctor announces his intent to end the war using the Moment.

The War Doctor was portrayed by the late John Hurt, and later by Jonathan Carley as his younger self in The War Doctor Begins audio series.

The War Doctor's incarnation was specifically chosen to be that of a warrior in the Last Great Time War and the regeneration was aided by the Sisterhood of Karn. His later incarnation stated that his actions broke "the promise" of the "name of the Doctor." As such, although the label "War Doctor" has been ascribed to him, he did not, in fact, accept the name Doctor (and as such he is not counted in the numbering of incarnations). During his long life, as seen in Big Finish's audio dramas, the War Doctor had a contentious relationship with Time Lady Ollistra, and was reluctant to take on companions, due to the increased danger of the War. However, he was regarded as a war hero by the Time Lord military.

Eventually, the events of the novel Engines of War would push him to find a solution to the War by destroying both sides. Shortly before regenerating due to old age, the War Doctor encountered his Tenth and Eleventh incarnations and, between them, they actually came up with an option that allowed the Time War to end without destroying Gallifrey. Due to the laws of time, however, the War Doctor was unable to remember this, and thus his following incarnation believed that he destroyed Gallifrey, and as such "disowned" the War Doctor incarnation.

Ninth Doctor

The Ninth Doctor

Do you know like we were sayin'? About the Earth revolving? It's like when you're a kid. The first time they tell you that the world's turning and you just can't quite believe it 'cause everything looks like it's standin' still. I can feel it. The turn of the Earth. The ground beneath our feet is spinnin' at 1,000 miles an hour and the entire planet is hurtling around the sun at 67,000 miles an hour, and I can feel it. We're fallin' through space, you and me, clinging to the skin of this tiny little world, and if we let go... That's who I am.
~ The Ninth Doctor to Rose Tyler.

The Ninth Doctor is portrayed by Christopher Eccleston.

The Ninth Doctor considered himself the sole Time Lord survivor of the Time War. He displayed much of the playfulness of his previous incarnations, but was emotionally and psychologically scarred by the war and his role in it, which sometimes resulted in a detachment that was interpreted by some as cruelty, as well as terrifying outburst of anger. When asked about his voice and accent, he responded, "Lots of planets have a North". He cared deeply for Rose; he began to heal thanks to her. Similar to his first incarnation, this Doctor liked to tease others by pretending not to remember names. He also made dry jokes when facing danger or to diffuse tension. After encountering a surviving Dalek, he briefly took on Adam Mitchell as a companion at Rose's insistence. However, after he used the opportunity of time travel for profit, the Doctor returned him home.

Later though, while dealing with the "Empty Child", the Doctor met Time Agent turned conman Captain Jack Harkness, and he and Rose travelled with him for a while. In the Titan Comics series, they began a quest to recover Jack's memories that were wiped by the Time Agency, running into a future Mickey Smith, sharing an adventure with the Brigadier, and ending up with a stowaway companion in Tara Mishra. By all accounts, this incarnation was very short-lived compared to the others; when he encountered the Daleks who had survived through their Emperor. During the Battle of the Game Station, Rose managed to defeat them with the power of the Time Vortex. To save her, he fatally absorbed the energy from her, and regenerated after saying a fond farewell.

Tenth Doctor

The Tenth Doctor

I'm the Doctor. I'm a Time Lord. I'm from the planet Gallifrey in the Constellation of Kasterborous. I'm 903 years old and I'm the man who is gonna save your lives and all 6 billion people on the planet below. You got a problem with that?
~ The Doctor to Rickston Slade in "Voyage of the Damned".

The Tenth Doctor is portrayed by David Tennant who also voices Scrooge McDuck, Charles Darwin and Angus.

The Tenth Doctor had a manic personality with a fondness for human pop culture references. However, his more outgoing personality traits largely existed to hide leftover emotional trauma from the Time War (like his Ninth life, he was unable to retain his memory of having worked with the War and Eleventh Doctors to change the outcome). While he had a bright, playful side, darker traits occasionally emerged. He continued his previous incarnation's love for Rose Tyler, though he was unable or unwilling to express his exact feelings. He experienced other romances on occasion, including with historic figures Madame de Pompadour and Queen Elizabeth I. However, they all ended badly. As well as this, he was completely oblivious to Martha Jones' feelings toward him, and insisted upon a platonic relationship with Donna Noble. The departure of each of these companions marked time's in his life where he would abstain from having companions at all.

He was also the first Doctor to explicitly fear and dodge regeneration, because he had grown attached to his attributes and felt like it was a form of death and loss of identity. As such, when shot by a Dalek and about to regenerate, he was able to use his cunning to abort the regeneration - though it still counted towards the limit imposed by the Time Lords - and continue on. When the time came for him to regenerate for real - this time from radiation exposure absorbed in order to save the life of his elderly companion, Wilf - he was completely heartbroken before accepting his destiny, But not before visiting every companion he had ever known, in this life and before.

Eleventh Doctor

The 11th Doctor.

I've lived a long life. And I've seen a few things. I walked away from the Last Great Time War. I marked the passing of the Time Lords. I saw the birth of the universe and watched as time ran out, moment by moment, until nothing remained. No time, no space. Just me! I walked in universes where the laws of physics were devised by the mind of a madman! And I watched universes freeze and creation burn! I have seen things you wouldn't believe! I have lost things you will never understand! And I know things, secrets that must never be told, knowledge that must never be spoken! Knowledge that will make parasite gods blaze!
~ The Doctor's speech in "The Rings of Akhaten."

The Eleventh Doctor was portrayed by Matt Smith and Jacob Dudman in Big Finish's The Doctor Chronicles.

The Eleventh Doctor was smug about his abilities and exhibited a renewed, youthful enthusiasm for adventure. He had keen observational skills, an obsession with seeming trivial. This Doctor could quickly turn frantically angry and ruthless when events demanded. He frequently referred to himself as being old, showing his age on more than a few occasions. He offered to sacrifice himself if it meant saving others on a universal scale. This incarnation's most notable enemy was the Silence, who were responsible for destroying his TARDIS, causing the cracks in time, which eventually consumed the universe, though he restored it with the Pandorica. His multi-century war with the Silence critically involved companions Amy Pond, Rory Williams and their daughter, River Song. Ultimately, the most significant defeat of the Silence required him to marry River in a wedding ceremony, that both regarded as genuine.

This Doctor's concern for his companions was greater than his predecessors; he left Amy and Rory back home to protect them, though eventually resumed travels with them, which ended in heartbreak. After this, the Doctor became darker and more depressed, claiming he was "retired". His attitude changed as he got to know Clara Oswald, whom he then invited to join him in the TARDIS before she fell to her death, breaking the Doctor's hearts again. He later became aware that Clara was, impossibly, scattered through time - he had previously encountered another incarnation of Clara who had died as a Dalek convert. Later, he found a third Clara, this one living in modern-day London, and the two were eventually able to learn why she was scattered through time.

A key moment in the Doctor's life occurred as the Eleventh Doctor teamed up with the Tenth and War Doctors to come up with an alternate way of ending the Time War without actually destroying Gallifrey. Although War and Ten were unable to remember this, the Eleventh Doctor found himself relieved of centuries of guilt and with a new purpose. He went on to spend nine centuries as the guardian of a town called Christmas on the planet Trenzalore. There, he aged into an ancient old man and prepared to die as the final incarnation. The Time Lords of Gallifrey, however, on Clara's request, were able to renew his regeneration cycle, and he was able to transform once more.

Twelfth Doctor

The Twelfth Doctor

I'm not trying to win. I'm not doing this because I want to beat someone, or because I hate someone, or because, I want to blame someone. It's not because it's fun and God knows it's not because it's easy. It's not even because it works, because it hardly ever does. I do what I do, because it's right! Because it's decent! And above all, it's kind. It's just that. Just kind. If I run away today, good people will die. If I stand and fight, some of them might live. Maybe not many, maybe not for long. Hey, you know, maybe there's no point in any of this at all, but it's the best I can do, so I'm going to do it. And I will stand here doing it till it kills me. You're going to die too, some day. How will that be? Have you thought about it? What would you die for? Who I am is where I stand. Where I stand, is where I fall.
~ The Twelfth Doctor's speech in The Doctor Falls

The Twelfth Doctor was portrayed by Peter Capaldi.

He first appears in the 50th Anniversary Special "The Day of the Doctor" were he assisted his other incarnations in saving Gallifrey during the Time War. He made his first official appearance at the end of the 2013 Christmas special The Time of the Doctor. The Doctor, no longer chained down by guilt, became a less amiable character, as he no longer needed to cover the pain of the extinction of the Time Lords, with a withdrawn attitude who habitually questioned his own goodness. He often dispensed with niceties in a tense situation, becoming cold and calculative when needed. However, despite his ruthless exterior, the Doctor was actually deeply caring and empathetic, always striving to help others for the sake of being kind. Unlike other incarnations who grew into their appearances, this version of the Doctor seems fairly self-conscious, having gone from a young man to a much older one despite being renewed. He also notices that he resembles Lobus Caecilius (a character he met in The Fires of Pompeii) with a Scottish accent.

It was not until his first battle with Missy, a female incarnation of the Master, that the Doctor resolved his morality crisis, realising he was simply "an idiot with a box and screwdriver" who went around helping others. Following this, the Doctor began to show his lighter side more clearly and forged a closer bond with Clara. The Doctor continued his travels with Clara, haunted by the reemergence of the Hybrid prophecy he had heard of in his childhood. After Clara was killed due to a trap set for him, in Face the Raven, the Doctor was trapped in his own confession dial, where he spent four billion years fleeing the Veil. In the Series 9 finale Hell Bent, the Doctor broke his own moral codes and unleashed his wrath upon the Time Lords in an ultimately futile attempt to save Clara, and after realising he was becoming the metaphorical Hybrid, accepted losing his memories of her as a price for his reckless actions.

In the 2015 Christmas special The Husbands of River Song, the Doctor reencountered River Song, who for the majority of the episode, was unaware of his true identity until he said "Hello Sweetie" to her. After defeating the robotic body of King Hydroflax, the Doctor and River spent a 24-year long night at the Singing Towers of Darillium. In the 2016 Christmas special The Return of Doctor Mysterio, the Doctor, with the help of River's former assistant Nardole and a man named Grant (whom as a child, met the Doctor and accidentally ate a gem, which granted his wish to be a superhero), defeated brain-like aliens called The Shoal of Winter Harmony.

In Series 10, the Doctor and Nardole guarded Missy, going "cold turkey" from evil in the Vault, for decades under St Luke's University while the Doctor acted as a tutor. The Doctor noticed a student, a woman known as Bill Potts who he took on as a companion after discovering Heather, the woman Bill was interested in, had become a sentient oil creature. Initially sneaking away to travel with Bill, the Doctor was joined by Nardole in Oxygen, where being exposed to the vacuum of space left him blind. Shortly after this, the Doctor became aware of The Monks, but when his unwillingness to talk about his blindness left him in a dire situation, his sight was restored at the cost of Earth's freedom. Eventually, the Doctor, Bill and Nardole, with advice from Missy, were able to defeat the Monks. After this, the Doctor divided his time between adventuring with Bill and Nardole, and supporting Missy's redemption.

Eventually, when it seemed that she had reached a turning point, the Doctor tested Missy's evolving goodness by rescuing a ship from a black hole. Soon, the situation went off the rails, and the Doctor discovered that the ship was a Mondasian Colony Ship. Bill was converted into a Cyberman, and events were being manipulated by Missy's predecessor (the Harold Saxon incarnation) to create a new breed of Cybermen. Left to defend the remaining colonists, the Doctor fought off the Cybermen, and was mortally wounded. Bill was restored by Heather and the two put the Doctor in his TARDIS, going onto travel together, whilst Nardole remained behind to protect the others from Cybermen. In the 2017 Christmas special Twice Upon A Time, the Doctor, refusing to regenerate due to weariness, encountered his first incarnation and met a glass avatar of Bill. Convinced to carry on living, the Doctor bade farewell to the avatars of Bill and Nardole and regained his memories of Clara. The Doctor returned to the TARDIS to regenerate, giving some final advice to his successor.

Thirteenth Doctor

The Thirteenth Doctor.

None of us know for sure what's out there. That's why we keep looking. Keep your faith. Travel hopefully. The universe'll surprise you... constantly.
~ The Thirteenth Doctor, The Battle of Ranskoor Av Kolos.

The Thirteenth Doctor is portrayed by Jodie Whittaker.

Unlike the previous Doctors, this incarnation is female. She made her first appearance in the 2017 Christmas Special Twice Upon A Time where shortly after regeneration, she was ejected from the Tardis which teleported away, leaving the Doctor plummeting to Earth. In the series 11 premiere The Woman Who Fell to Earth, The Doctor crash lands in Sheffield, where she befriends Ryan Sinclair, Yasmin "Yaz" Khan and Grace (Ryan's grandmother) and Graham O'Brien. After losing the sonic screwdriver in the fall, the Doctor makes a new one. The Doctor and her new friends come up against T'zim Sha (whom the Doctor dubs Tim Shaw) a member of the Stenza warrior race, who came to Sheffield to hunt a human trophy. With the help from her friends, the Thirteenth Doctor defeated Tim Shaw, but at the price of Grace's life. Afterwards the Doctor attempts to find the Tardis by using a teleporter, but accidentally takes Ryan, Yaz and Graham with her.

In The Ghost Monument, The Doctor and her friends find out that the Stenza forced scientists on the planet Desolation to make weapons for them. As well as this, the Doctor was taunted over the "Timeless Child". After finding the redecorated TARDIS, the Doctor headed for Sheffield. After a few adventures, where they encountered Rosa Parks, and the corrupt businessman Jack Robertson, the Doctor's friends all agreed to stay with the Doctor. Over the course of their travels, the Doctor helped her new "fam" take on issues with their families, and eventually they faced the vengeful Tzim Sha again. In the New Year's special Resolution the Doctor and her "fam" faced a Recon Scout Dalek that had been buried on Earth for centuries.

In series 12, the Doctor discovered her old foe the Master had returned, plaguing the Doctor and Team TARDIS with a plot to wipe out humanity. Furthermore, the Master revealed he destroyed Gallifrey, on the basis of the secret of the Timeless Child, a mysterious and pivotal figure in the birth of the Time Lords. Some time after, the Doctor became involved in a Judoon raid to capture an Earthside fugitive, only to discover the fugitive was a previously unknown incarnation of herself. Shaken by the discovery (neither Doctor remembers the other), the Doctor is further shocked by her companions' meeting Captain Jack Harkness and his warning of the Lone Cyberman. After dealing with the Praxeus virus, and defeating a pair of immortals, the Doctor took her team to Villa Diodati to meet Mary Shelly and her friends. There, they encountered the Lone Cyberman, who sought the Cyberium to rebuild the Cyber race. Forced to give him the Cyberium to protect history, the Doctor took off after the Cyberman to stop his schemes. Her chase after the Lone Cyberman ultimately draws back to Gallifrey, where the Master greets her and reveals her origin as the Timeless Child and the progenitor of the Time Lord race, and that she worked for a mysterious agency called the Division. With encouragement from her Fugitive self, the Doctor defeated the Master and his Time Lord/Cybermen creations. Forced to send her companions away, the Doctor managed to get herself arrested by the Judoon.

In the 2021 New Year special Revolution of the Daleks, The Doctor is freed from prison by Captain Jack and reunites with Yaz, Ryan and Graham and learns that Daleks have been made as defence drones based on the Recon Scout Dalek and are controlled by AI. They soon arrive at a Dalek cloning factory in Japan where the cloned Daleks (which were made by the clone of the Recon Scout Dalek, who fed the clones liquidised humans) transport themselves into the Defence Daleks and begin exterminating people. The Doctor resorts to sending a signal to a group of Death Squad Daleks to summon them to Earth in order to destroy the Defence Daleks. After the Death Squad Daleks learn of her, The Doctor tricks them into going into a spare Tardis she had and sets it to fold in on itself, destroying the Daleks whilst Ryan, Graham and Captain Jack set bombs on the Daleks' ship, destroying the remaining Daleks. Afterwards, Ryan and Graham decide to return to their normal lives and bid a sad farewell to The Doctor and Yaz and are each given psychic paper by The Doctor as parting gifts.

In Series 13, Flux, having travelled solo with Yaz for a long while, The Doctor began looking for answers about the Division, tracking down a surviving former operative, Karvanista. However, joined by Dan Lewis, the Doctor found herself facing her greatest existential threat in the form of the Flux, a force which would take apart the very structure of the cosmos, bringing about the end of everything.

Other versions

  • Dr. Who, a human scientist from Dr. Who and the Daleks, and Daleks Invasion Earth: 2150 AD, played by Peter Cushing.
  • The Doctor (Scream of the Shalka), the Ninth Doctor from the web animation Scream of the Shalka, played by Richard E. Grant.


Hello? Who's there? Hello?
~ First Doctor's first lines
Slower... SLOWER! Concentrate on one thing... ONE THING!
~ Second Doctor's first lines
Shoes... I must find my shoes...
~ Third Doctor's first lines
Key, key … key, key … key, key … Yes, of course. Obvious place
~ Fourth Doctor's first lines
Ah... You've come to help me find the Zero Room. Welcome aboard. I'm The Doctor... Or will be if this regeneration works out!
~ Fifth Doctor's first lines
You were expecting someone else?
~ Sixth Doctor's first lines
Oh no, Mel... Ah, that was a nice nap! Now down to business... I'm a bit worried about the temporal flicker in sector thirteen... There's a bicentennial refit of the Tardis to book in... I must just pop over to Centauri Seven and then perhaps a quick holiday... Right, that all seems quite clear, just three small points, where am I? Who am I? And who are you? The Rani! Stay back!
~ Seventh Doctor's first lines
Who am I? Who am I? Who... Am... I?
~ Eighth Doctor's first lines
Doctor no more
~ War Doctor's first lines
~ Ninth Doctor's first lines
Hello! Oka- New teeth. That's weird... So where was I? Oh, that's right... Barcelona!
~ Tenth Doctor's first lines
Legs! I've still got legs! Good. Arms, hands. Ooh, fingers. Lots of fingers. Ears? Yes. Eyes: two. Nose... I've had worse. Chin... blimey! Hair... I'm a girl! No! No! I'm not a girl! And I'm still not ginger! There's something else... Something important, I'm... I'm... I'm... Crashing! Geronimo!
~ Eleventh Doctor's first lines
Kidneys! I've got new kidneys! I don't like the colour.
~ Twelfth Doctor's first lines
Oh, brilliant!
~ Thirteenth Doctor's first lines


  • The Doctor can naturally regenerate an infinite amount of times. However, the Division put a lock on it to only allow him 12 more after wiping his memory and forcing him to become a child in a new incarnation as the First Doctor. The lock was broken when Rassilon gave the Doctor more regenerations on Trenzalore.

External Links


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The Doctor
Dr. Who | The Doctor (Scream of the Shalka) | Meta-Crisis Tenth Doctor | Fugitive Doctor

The Doctor's companions
Susan Foreman | Ian Chesterton | Barbara Wright | Vicki Pallister | Steven Taylor | Katarina | Sara Kingdom | Dodo Chaplet | Ben Jackson | Polly Wright | Jamie McCrimmon | Victoria Waterfield | Zoe Heriot | Liz Shaw | Jo Grant | Sarah Jane Smith | Harry Sullivan | Leela | K9 Mark I/K9 Mark II | Romana | Adric | Nyssa | Tegan Jovanka | Turlough | Kamelion | Peri Brown | Mel Bush | Ace | Grace Holloway | Chang Lee | Rose Tyler | Captain Jack Harkness | Mickey Smith | Martha Jones | Donna Noble | Amy Pond | River Song | Rory Williams | Clara Oswald | Nardole | Bill Potts | Graham O'Brien | Ryan Sinclair | Yasmin Khan | Dan Lewis
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Torchwood Institute
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Bannerman Road Gang
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Paternoster Gang
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Coal Hill defenders
Charlie Smith | Ram Singh | April MacLean | Tanya Adeola | Andrea Quill | Matteusz Andrzejewski

Other Allies
Professor Travers | Alpha Centauri | Jago & Litefoot | Maxwell Edison | Sabalom Glitz | Bernice Summerfield | Jackie Tyler | Bad Wolf | Pete Tyler | Hostess | Craig Owens | Brian Williams | Danny Pink | Rigsey | Grant Gordon | Grace O'Brien | Karvanista | Vinder | Bel | Eustacius Jericho