Baron Zemo
Baron Zemo is a title held by two supervillains in Marvel Comics: Heinrich Zemo, a German aristocrat and Nazi scientist who opposed Captain America during World War II, and his son Helmut Zemo, a tactician driven by familial vendetta against the Avengers.[1][2]Heinrich Zemo rose as a leading figure in the Axis powers through his expertise in chemistry and physics, inventing devices including a death ray weapon and Adhesive X, a nearly unbreakable bonding agent.[1]
After the war, he evaded capture, formed the Masters of Evil to challenge the Avengers, and met his end buried under rubble in a South American avalanche during a duel with Captain America, his face permanently scarred by a fused metal cowl from an earlier experimental mishap.[1]
Helmut Zemo, inheriting the baronial legacy, attributes his family's destruction—including his disfigurement from an explosive device—to interference by superheroes, fueling his campaigns of retribution through superior intellect, combat prowess, and organizational leadership rather than innate superhuman abilities.[2]
He has directed villainous alliances like reformed iterations of the Masters of Evil and manipulated public perception by fronting teams such as the Thunderbolts, which masqueraded as heroic reformers while advancing subversive agendas.[2]