Sin (Marvel Comics)

Sin
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): Telepathy Telekinesis Teleportation Intangibility

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.

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

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.