Sin (Marvel Comics)

For DC Comics character of the same name, see Sin (DC Comics).

Cover art for Captain America (vol. 5) #28.
Sin is in the foreground.
Art by Steve Epting.
Publication information
Publisher Marvel Comics
First appearance Captain America #290 (Feb 1984)
Created by J.M. DeMatteis (writer)
Paul Neary (artist)
In-story information
Alter ego Sinthea Shmidt
Team affiliations Sisters of Sin
Serpent Squad
The Worthy
Partnerships Crossbones
Notable aliases Mother Superior, Sister Sin, Erica Holstein, Red Skull, Skadi: Herald of the "Serpent"
Abilities Expert hand to hand combatant and martial artist
Highly skilled markswoman
High-level intellect
(As Mother Superior):

Sin (Sinthea Schmidt) is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as the daughter of the Red Skull.

Publication history

Sin first appeared in Captain America #290 (Feb 1984), and was created by J.M. DeMatteis and Paul Neary.

Fictional character biography

Sin being aged into adulthood. Art by Paul Neary.

Seeking an heir, the Red Skull (Johann Schmidt) fathered a daughter with a washerwoman. After the woman died in childbirth, the Red Skull angrily almost killed the child as it was a girl. But his follower Susan Scarbo convinced him not to, telling him she would raise the girl herself as her nanny. Red Skull agreed and left the girl now named "Sinthea Schmidt" with Scarbo to be raised by her and indoctrinated with Red Skull's views as she grew up. Red Skull returned when Sinthea was a child and put her in a machine that had her aged into adulthood and gave her superhuman powers.[1]

As Mother Superior, she became the leader of a group called the "Sisters of Sin", young orphan girls who were accelerated into adulthood and given psionic powers by the Skull after being indoctrinated by Sinthea. The Sisters of Sin would have many run-ins with Captain America (Steve Rogers) before being de-aged when they entered a chamber designed to reverse Red Skull's aging process and they were restored to children (she would later claim she was deaged to the wrong age - but whether this is true, and in which direction, is unclear).

Later, Mother Night reformed the Sisters of Sin and became their new leader, while the deaged Sinthea herself took the name Sister Sin.

Sometime later, she was captured by S.H.I.E.L.D. and taken to their reeducation facility where they reprogrammed her with false memories as "normal" American girl Erica Holstein. After the Red Skull was seemingly assassinated by the Winter Soldier under Aleksander Lukin's orders, Crossbones broke into the facility, kidnapped Erica and tortured her to break her reprogramming. After he succeeded, she simply calls herself "Sin" while she entered into a relationship with him and the two went on a killing spree. She later reunited with Red Skull while her father was living inside General Lukin's mind.[2]

As the first part of Red Skull's Master Plan, Sin disguised herself as a nurse after the Civil War while Crossbones sniped Captain America at the courthouse, even though it meant obeying her father and abandoning Crossbones to his fate. Sin then revealed to Sharon Carter that Carter was the one who had killed Cap. Now the leader of a new incarnation of the Serpent Squad, Sin breaks Crossbones out of jail. He is later apprehended again, and Sin wounded in an attempt to break into the Capitol Building. Sin is later sent to assassinate the Democratic and Republican presidential candidates, but is stopped by the new Captain America (Bucky Barnes).[3] In the aftermath of Captain America: Reborn, after attempting to put her father in Steve Rogers's body, she is injured by the explosion of her father's mechanical body and her face is hideously scarred like her father's.[4]

She is later visited in prison by Baron Zemo for information about Bucky.[5] Sometime later, Master Man sprung Sin from prison, prompting Sin to take her place as the new "Red Skull".[6] She delivers a video to the media recorded three months before Bucky Barnes's trial where he declares that he wasn't brainwashed but was an accomplice and fully aware of his actions. She along with Master Man are later seen on Ellis Island where she pretends to blow up the Statue of Liberty with Falcon and Black Widow tied up and gagged inside, unless Bucky is delivered to her.

During the Fear Itself storyline, Sin, with Baron Zemo's help, unearths the Hammer of Skadi and becomes Skadi in order to free the Serpent: God of Fear from his underwater prison. Sin vows to do what her father failed to do in taking over the world.[7] She succeeds in her mission in freeing the Serpent and then prepares an army of Nazis to take over the D.C. Capital.[8] During their battle in Washington, D.C., Skadi mortally wounds Bucky Barnes (still serving as Captain America).[9] In the final battle, Skadi battles Steve Rogers. Thor gives Rogers his hammer Mjolnir so that he can make up for the loss of his shield. Thor manages to kill the Serpent and Odin strips the Worthy of their hammers, causing Sin to lose the power of Skadi. This leaves Sin incapacitated.[10]

Sin later returns as one of the villains working alongside Baron Zemo as part of a plot to forcibly sterilize the human race. She battles the new Captain America (Sam Wilson) and apparently falls to her death after refusing to allow the hero to save her from an explosion.[11]

At the end of the Avengers: Standoff! storyline, Sin was with Red Skull's clone when he re-establishes HYDRA with Crossbones.[12]

Powers and abilities

Sin appears to have no superhuman abilities but being trained by her father, the Red Skull, through which she is an expert hand-to-hand combatant and martial artist. She is also highly proficient in firearms and explosives, and has a high-level intellect.

As Mother Superior, Sin possessed a range of superhuman powers including telepathy, telekinesis, teleportation and intangibility. After she was de-aged, she apparently lost these powers completely - unlike the other "Sisters of Sin", whose powers were diminished but not eliminated upon de-aging. The reason for this discrepancy has never been revealed.

As wielder of the Hammer of Skadi, Sin as "Skadi" could fly or propel herself through water at great speeds. She could also release large amounta of electricity and energy from the hammer and teleport herself to other places. The hammer could also be used as a blunt-force melee weapon or as a throwing projectile. She eventually lost these powers after the Hammer was apprehended.

In other media


Video games


  1. Captain America #298 Marvel Comics, (October 1984)
  2. Captain America Vol. 5 #21 Marvel Comics, (October 2006)
  3. Captain America Vol. 5 #42, Marvel Comics
  4. Captain America: Reborn #6, Marvel Comics
  5. Captain America #606, Marvel Comics
  6. Captain America #612, Marvel Comics
  7. Fear Itself: Book of the Skull Marvel Comics
  8. Fear Itself #1 Marvel Comics (April 2011)
  9. Fear Itself #3 Marvel Comics, (June 2011)
  10. Fear Itself #7 Marvel Comics, (October 2011)
  11. All-New Captain America #1-3
  12. Avengers Standoff: Assault on Pleasant Hill Omega #1
  13. "All Hail The King: Drew Pearce Interview". Joblo. Retrieved 2014-02-06.
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