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Alright, but I do think he's our only hope y'know, where are we heading to now?
~ Dean to Griphook.
We're fighting, aren't we? The message said Harry was back, and we were going to fight! I'll have to get a wand, though....
~ Dean during the Battle of Hogwarts.

Dean Thomas is one of the many fictional supporting characters from the Harry Potter series, a book series created by J.K. Rowling. He is a Hogwarts School of Witchcraft and Wizardry and House Gryffindor student, and member of Dumbledore's Army under the leadership of his classmate, Harry Potter.

Dean Thomas attended Hogwarts and was sorted into Gryffindor, a house known to hold courageous and determined wizards. He was best friends with Seamus Finnigan, and good friends of Harry Potter, Ron Weasley, Hermione Granger, Neville Longbottom, and Ginevra Weasley. He joined Dumbledore's Army, led by Harry Potter. He fought and survived in the battle of Hogwarts, and witnessed the death of Lord Voldermort. His life after the war is unknown.

He was portrayed by Alfred Enoch, who also portrayed Wes Gibbins on How To Get Away With Murder.


Early Life

Dean Thomas was born between September 1st, 1979 to August 31st, 1980 in London, England to unnamed father and mother. His father was a wizard while his mother was a muggle, and his father left the family and didn't tell them about magic to protect them during the First Wizarding War. Dean's father would later be murdered by a group of Death Eaters after refusing to join them, and Dean would grow believing that he was muggle-born. His mother would go marry a muggle and have unnamed children with them, who showed no magical abilities.

Harry Potter Series

The Sorcerer's Stone

When Dean received a letter to join Hogwarts of School of Witchcraft and Wizardry in 1991, his mother suspected that his father was a wizard, and allowed to be accepted in. Arriving to Hogwarts, Dean was sorted into House Gryffindor and befriended his fellow Gryffindor classmates, Seamus Finnigan, Harry Potter, Ron Weasley, Neville Longbottom, and Hermione Granger. He shared a dormitory with Seamus, Harry, Ron and Neville, and placed a West Ham United Football Club poster above his bed. Ron was bemused by this, but Dean, like Harry, didn't grow up watching Quidditch, but the two would become skilled players.

The Chamber of Secrets

During his second year, Dean joined the Dueling Club, where students were trained on how to protect themselves by Defense Against the Dark Arts professor Gilderoy Lockhart. After Filch's cat was petrified, rumors spread that the Chamber of Secrets had been reopened, and that the heir of Slytherin was in the school. When Professor Binns told his class about the history of the chamber, Dean was about to make a correct speculation, but was stopped by the professor. Due to his muggle-born status, Dean was believed to be at risk of being attacked by the creature. Thankfully, the creature was stopped by Harry, who managed to save Ginny from Tom Riddle, who was trying to return to the world through his diary.


Dean was open-minded. When Dolores Umbridge referred to Remus Lupin as a "dangerous half-breed", he jumped to his former teacher's defense. On two occasions, he told her and another teacher, Professor Snape, that Lupin was the best Defense Against the Dark Arts teacher that his class group ever had.

Dean was generally an easy-going and good-natured person, able to get along well with many people. He never displayed any anger towards Harry Potter during their sixth year, especially when his ex-girlfriend Ginny Weasley started dating Harry shortly after breaking up with her, because he was aware of Ginny's childhood crush on the Boy Who Lived since she came to Hogwarts a year after the two boys started. He also easily established a friendship with Luna Lovegood, whom many would consider bizarre.

He was brave and loyal. He was eager to participate in the defense of his school against Death Eaters, despite not even having a wand, and never lost his faith in Harry Potter, believing him when he claimed that Lord Voldemort had returned. He also had faith that Harry would eventually defeat the Dark Lord.

Dean was apparently willing to violate school rules, if doing so would help a friend. In his third year, when Harry was not allowed to go to Hogsmeade because his uncle had not signed his permission slip, Dean offered to forge the signature (unfortunately Harry could not accept, as he had already mentioned to Professor McGonagall that his form was not signed).

Dean was a skilled artist and also enjoyed reading the comic book Loony Nonby v.s. Cornish Pixie, showing an interest in art.




  • Rowling included information on Dean's background in an early draft of Harry Potter and the Chamber of Secrets, but ultimately cut it out, as she felt it was an "unnecessary digression." She stated that she had to a certain extent traded Dean's "voyage of discovery" for Neville Longbottom's because the latter character's discoveries about his past were more relevant to the main story.
  • His name was "Gary" in early drafts of the first book.


           HarryPotter.png Heroes

Dumbledore's Army
Alicia Spinnet | Angelina Johnson | Anthony Goldstein | Katie Bell | Parvati Patil | Padma Patil | Michael Corner | Terry Boot | Cho Chang | Colin Creevey | Dean Thomas | Dennis Creevey | Ernie Macmillan | Fred Weasley | George Weasley | Ginny Weasley | Harry Potter | Hannah Abbott | Hermione Granger | Justin Finch-Fletchley | Lavender Brown | Lee Jordan | Luna Lovegood | Neville Longbottom | Ron Weasley | Seamus Finnigan | Susan Bones

Order of the Phoenix
Alastor Moody | Albus Dumbledore | Arabella Figg | Arthur Weasley | Bill Weasley | Dobby | Fleur Delacour | Kingsley Shacklebolt | Lily Potter | Minerva McGonagall | Molly Weasley | Nymphadora Tonks | Remus Lupin | Rubeus Hagrid | Severus Snape | Sirius Black

Hogwarts Staff
Albus Dumbledore | Minerva McGonagall | Severus Snape | Filius Flitwick | Pomona Sprout | Horace Slughorn | Remus Lupin | Rubeus Hagrid | Sybill Trelawney | Firenze | Rolanda Hooch | Neville Longbottom | Poppy Pomfrey | Peeves | Dobby

Circle of Khanna
Rowan Khanna | Penny Haywood | Ben Cooper | Chiara Lobosca | Tulip Karasu | Barnaby Lee | Talbott Winger | Andre Egwu | Jae Kim | Badeea Ali | Liz Tuttle | Diego Caplan | Beatrice Haywood | Merula Snyde | Ismelda Murk

Other Wizards & Witches
Cedric Diggory | Draco Malfoy | Godric Gryffindor | Helga Hufflepuff | Rowena Ravenclaw | Gabrielle Delacour | Helena Ravenclaw | Isolt Sayre | Moaning Myrtle | Newt Scamander | Porpentina Goldstein | Oliver Wood | Percy Weasley | Regulus Black | Rufus Scrimgeour | Stan Shunpike | Ernie Prang | Viktor Krum

Jacob Kowalski

Animals & Creatures
Aragog | Buckbeak | Kreacher | Dobby | Dre Head | Firenze | Grawp

Hogwarts School of Witchcraft and Wizardry
Gryffindor | Hufflepuff | Ravenclaw