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NOTE: This article is about the incarnation of Sif from the Marvel Cinematic film series. The mainstream version can be found here: Sif (Marvel).

I am no monster. I am sometimes dangerous, but only toward those who are deserving.
~ Lady Sif.
I am Lady Sif of Asgard, friend of the S.H.I.E.L.D.
~ Lady Sif.

Sif, also known as Lady Sif, is a fictional character in the Marvel Cinematic Universe. She is a supporting character in Thor (2011) and Thor: The Dark World (2013). She also appears in two episodes of the television series Agents of S.H.I.E.L.D., a time loop version of herself in an episode of the Disney+ tv series Loki, and will return in Thor: Love and Thunder.

She is a feared Asgardian warrior and a good friend of Thor and the Warriors Three. When Thor almost provoked a war with the Frost Giants and ended up powerless on Earth, Sif and her friends disobeyed the orders of their new king Loki and went to Earth to save their friend. Thanks to them, Thor returned to Asgard and Loki's reign of terror ended.

Later, along with her friends, Sif bravely fought against the Marauders, an intergalactic ragtag band of pirates who pillaged the unprotected realms of the universe. After the Second Dark Elf Conflict, she was sent to Earth and successfully captured one of Asgard's most dangerous renegades, Lorelei. A year later, Sif returned to Earth again, this time to investigate the arrival of the Kree warrior Vin-Tak who was hunting down the Inhumans.

Sif was among the many who died when Thanos completed the Infinity Gauntlet and wiped out half the life in the universe. She was revived by Dr. Bruce Banner in 2023, as the Mad Titan was defeated by the Avengers.

She is portrayed by Jaimie Alexander, who also played Jane Doe in Blindspot.

In Thor: The Dark World - The Official Game, she was voiced by Sarah Natochenny, who also voiced Ash Ketchum in Pokémon, Aura Sentia in Yu-Gi-Oh! Arc-V, Tinker Bell in Peter Pan: The Quest for the Never Book, and Mowgli in the Jungle Book animated series.

History

Background

Sif was the Norse Goddess of War, but her talents as a warrior weren't appreciated by others since she was a woman. However, this would change when her friend Thor praising her talents, which allowed her to be considered one of the greatest warrior of Asgard alongside the Warriors Three. Though Sif developed romantic feelings for Thor, she was also romantically involved with Haldor, who was later enthralled by Lorelei. Due to his enthrallment, Haldor would die, causing Sif and Lorelei to become bitter enemies. In addition, Sif was also an ally to Thor's adoptive brother Loki, who once pulled a prank by cutting off her hair. Sif confronted him, but the God of Mischief continued to his tricks on others.

Marvel Cinematic Universe

Thor

Thousands of years after the war between Asgard and Jotunheim, Odin would give way as King to his son, Thor (very despite the discontent of Loki). However, the ceremony was interrupted by Frost Giants who wanted to retrieve the Casket of Ancient Winters. This intrusion, angered Thor who asked Sif and the Warriors Three accompany him to Jotunheim and put an end to the cold war between the two races. Sif and others traveled to Jotunheim, even though they thought it was a bad idea. Here, they fought against Jotuns, who quickly surpassed in number and power. Fortunately for them, they were saved by Odin.

She watched as the all father banished Thor and send him to Earth. Days later and after Odin fall in his sleep, Sif and her friends asked Loki forgive Thor and allowed him to return from his exile. Loki refused this request since for him that would be the wish of his father. As Loki refused, she and the Warriors three traveled Midgard, even though they knew that it could cause their banishment. Here, they revealed to Thor that his father was not dead, only sleeping, finding that Loki was behind all this.

When the Destroyer arrived, Sif bravely fought against the armor, but she quickly was overpowered by the machine. She had planned to die and have stories told of her sacrifice. But Thor convinced her to live and tell those stories herself. She witnessed how Thor sacrificed himself and so regain his powers. With the Destroyer defeated, Sif and the others return to Asgard.

Thor: The Dark World

I had things under control!
~ Sif

Sif traveled with the other Asgardians to Vanaheim to stop the Marauders, who were causing a great damage around the Nine Realms. She and the others fiercely fight against Marauders. When Thor arrived, he easily defeated the Marauders. The Marauders then called their best warrior, Korg. Sif allowed Thor fight the monster alone. Thor defeated Korg with one blow and the battle ended. She and the other Asgardians returned to Asgard to celebrate the victory. Tired of the party, Thor decides to leave but he is interrupted by Sif. Sif told Thor that she knew he was visiting Heimdall only to know how Jane was.

After an attack by Malekith and his troops, Sif attended the mass funeral in honor of all the fallen soldiers in battle. The next day, she was summoned by Thor to devise a plan to prevent another attack from Malekith to Asgard. Thor then sent her to liberate Jane from Einherjar Guards and so take Jane to the Dark World and allow Malekith remove the Aether from her. Sif helped to free Jane from the guards. When Thor and Loki were preparing to go to Svartalfheim, she threatened Loki to kill him if it occurred to him to betray Thor.

After finishing the battle against the Dark Elves, Sif and Volstagg went to the Collector's Museum, to hand over the Aether because it is dangerous to have two Infinity Stones in one place. Sif warned Tivan that he must protect the Aether at all costs.

Agents of S.H.I.E.L.D.

As a result of the attack of the Dark Elves, many prisoners of Asgard escaped including Lorelei, an Asgardian sorceress. Loki disguised as Odin sent Sif to capture Lorelei. Upon reaching Earth, Sif finds Coulson and his team, who decide to help her.

Meanwhile, Sif and Lorelei talking, it was revealed that Lorelei used her powers to seduce the lover of Sif. After many problems, Sif captures Lorelei and return to the dungeons of Asgard. Before leaving, Coulson asks Sif that she did not tell Thor that he is still alive, Sif accepts the request and return to Asgard to confine Lorelei for her crimes.

Sif was sent to Earth by Odin to stop a Kree who had gone to Midgard with unknown reasons. She fought fiercely against the Kree, however Vin-Tak used a device to erase her memory. Later, she met with a group of teenagers, one guy tried to seduce her, causing her to hit him. The police managed to stop her, with the promise that they would bring Kava to her. Coulson and his team arrived to Faro, Portugal; they told her that she and S.H.I.E.L.D. worked together in the past.

Sif, Coulson, and May walked around the place where she and Vin-Tak had fought earlier; Sif said she did not remember anything of what happened. When May asked her about what she remembered of Thor, she could give no account, but admitted that the name alone made her want to smile. Meanwhile, Skye and Bobbi Morse had an encounter with Vin-Tak. That night, they managed to capture him in Chaves. Sif demanded answers from the Kree; Vin-Tak told her that he used Truncheon to erase her memory so she would not interfere with his mission. He then used Truncheon to restore her memory.

Vin-Tak informed the Asgardian that he went to Earth to destroy all Kree experiments, called Inhumans. Suddenly the floor began to tremble, then Sif and Vin-Tak realized that Skye was one of those experiments. Sif pursued Skye and ordered May to hand over Skye. Cornered, Skye decided to shoot herself to prove that she was not a monster. Later, Sif took Vin-Tak and returned him to Hala.

Avengers: Infinity War and Avengers: Endgame

Although Sif doesn't appear in Infinity War and Endgame, Kevin Feige confirmed that she fell victim to Thanos' fingersnap. Along with the other victims, she was revived in 2023 by Dr. Bruce Banner.

Personality

As she is the only female warrior in Asgard, Sif is very proud and always eager to prove herself. She is also the closest of friend with Thor and the Warriors Three, and she is an honorable warrior on the battlefield. She often is independent and uneasy in following orders. Sif is the first person to suspect Loki of treason following Thor's banishment, proving that she is very observant.

Powers and Abilities

Powers

  • Asgardian Physiology: As an Asgardian, Sif possesses several superhuman physical attributes common among the Asgardians; such as superhuman strength, durability, speed, agility, reflexes, stamina, longevity, etc.
    • Superhuman Strength: Sif was able to hold her own against the Frost Giants and Marauders, attack the Destroyer from above, piercing its chest with her sword and with one push from her foot, move a very large RV at considerable distance.
    • Superhuman Durability: Sif is capable of withstanding brutal attacks from superstrong Frost Giants and the Destroyer without sustaining any damage. She can also withstand shotgun blasts at close range without any injury.
    • Superhuman Speed: Sif can outrun a Frost Beast and stop a sharp missile from hitting Thor with her shield.
    • Superhuman Agility: Sif is able to defeat multiple Frost Giants and had the upper hand for most of her duel with Vin-Tak by utilizing her superior agility and balance.
    • Superhuman Reflexes: Sif's reflexes are much faster than most humans.
    • Superhuman Stamina: Sif's muscles produce practically no fatigue toxins during physical activity compared to those of humans and most other members of her race. Her virtually inexhaustible stamina enables her to exert herself at peak capacity for an undefined period of time without tiring at all.
    • Accelerated Healing Factor: Sif's metabolism allows her to heal much faster, more extensively and efficiently.
    • Superhuman Immunity: Sif was able to withstand the extreme cold of Jotunheim with only a thin layer of armor.
    • Superhuman Longevity: Like all Asgardians, Sif ages far slower than normal humans. Despite being over 1,000 years old, she still maintains the physical appearance of a woman in her prime.

Abilities

  • Master Hand-To-Hand Combatant: Sif is a highly skilled hand-to-hand combatant, having received training in both armed and unarmed combat, which enabled her to become one of Asgard's greatest warriors.
  • Master Swordswoman: Sif is a highly skilled swordswoman, she is widely feared and recognized as one of Asgard's greatest warriors.

Equipment

  • Asgardian Armor: Sif wears protective armor, to protect herself from her enemies in battle.
  • Double-bladed Sword: Sif utilizes a double-bladed sword in combat; one of the two blades is retractable, allowing for Sif to fight with a single-blade.
  • Shield: Sif almost always utilizes a shield for providing defense in battle. Due to it being comprised of Uru, Sif's shield is almost indestructible; for example, it is capable of deflecting gunfire.

Relationships

Allies

Enemies

Appearances

TV

  • Agents of S.H.I.E.L.D. (2014, 2015, 2 episodes)

Movies

  • Thor (2011)
  • Thor: The Dark World (2013)
  • Thor: Ragnarok (2017, mentioned)
  • Thor: Love and Thunder (2022)

Comics

  • Thor, The Mighty Avenger (2011, 1 appearance))
  • Thor: Rescue (2011, 1 appearance))
  • Thor Adaptation (2013, 2 appearances)
  • Thor: The Dark World Prelude (2013, 1 appearance)
  • Thor: Crown of Fools (2013, 1 appearance)
  • Guardians of the Galaxy Prequel Infinite Comic (2014, 1 appearance)
  • Marvel's Thor: Ragnarok Prelude (2017, 1 appearance)
  • Avengers: Infinity War Prelude (2018, 1 appearance)

Games

  • Thor: God of Thunder (2011)
  • Thor: The Dark World - The Official Game (2013)

Quotes

He may speak for the good of Asgard, but he's always been jealous of Thor.
~ Sif.
Betray him, and I'll kill you.
~ Sif to Loki.
You conniving, craven, pathetic worm! You did this!
~ Time loop Sif to Variant Loki in the titular Disney+ tv series.

Gallery

Trivia

  • In the comics, Sif is Thor's lover and main love interest, not just a friend or a teammate, being a direct adaptation of Norse mythology, where Sif is the wife of Thor. Her feelings for Thor are hinted in the end of the first film when she looks at him talking with his father, and also when Lorelei taunts her during their fight. Another reference was when Sif had lost her memory, but when Phil Coulson mentioned Thor, Sif said that though she did not know the name, it made her want to smile.
  • Also in the comics, Heimdall and Sif are brother and sister. Although this relationship has not been explored in the movies, concept art exists of a black Sif, confirming that this relationship was originally propped for Thor.
  • In the non-canon comic Captain America & Thor: Avengers!, Sif helps her friends to free Fandral who is captured by the Dark Elves led by Queen Alflyse.
  • Jaimie Alexander was unable to reprise the role of Sif in Thor: Ragnarok due to scheduling conflicts with the filming of the crime TV series Blindspot, in which she starred as its main protagonist Jane Doe. However, after the series finished airing in 2020, she was later confirmed to return for the fourth film, Thor: Love and Thunder.
  • She is the first character in the Marvel Cinematic Universe to appear in both an ABC and Disney+ show, Agents of S.H.I.E.L.D. and Loki.

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