Heinrich Zemo

Baron Zemo
Heinrich Zemo, the 12th Baron Zemo
Art by Steve Epting
Publication information
PublisherMarvel Comics
First appearanceUnnamed flashback cameo:
The Avengers #4 (March 1964)
Full appearance:
The Avengers #6 (July 1964)
Created byStan Lee
Jack Kirby
In-story information
Full nameDr. Heinrich Zemo
Team affiliationsNazi Party
Masters of Evil
Legion of the Unliving
Abilities
  • Genius-level intellect
  • Skilled hand-to-hand combatant, swordsman, and marksman
  • Slowed aging

Baron Heinrich Zemo is a supervillain appearing in American comic books published by Marvel Comics. Created by Stan Lee and Jack Kirby, the character first made an unnamed cameo appearance in a flashback in The Avengers #4 (1964), before being fully introduced in The Avengers #6 (1964). He is commonly depicted as one of the greatest enemies of Captain America and the Avengers.

Heinrich Zemo is the 12th Baron Zemo, a high-ranking Nazi scientist, and the original founder and leader of the supervillain team the Masters of Evil. Zemo's vendetta against Captain America began when his mask was permanently affixed to his head by a chemical adhesive during one of their confrontations in World War II. Another of their battles led to the death of Captain America's sidekick Bucky, though this was later reversed. Zemo survived to the modern age and opposed Captain America and the Avengers until he was killed in battle, after which he is succeeded by his son Helmut Zemo.

The character has been adapted in various media incarnations, having most notably been voiced by Robin Atkin Downes in The Avengers: Earth's Mightiest Heroes animated series.