Baron Zemo, also known as Heinrich Zemo, was created by writer Stan Lee and artist Jack Kirby. He first appeared in "Avengers" #4 in 1964. First Appearances: Heinrich Zemo made his debut as Baron Zemo in "Avengers" #4. He is a key figure in Marvel Comics associated with the Captain America and Avengers storylines. Major Comic Book Story Appearances: Baron Zemo has been a recurring antagonist in various story arcs, particularly those involving Captain America. Notable appearances include the original "Masters of Evil" storyline and his connection to the tragic backstory of Bucky Barnes. Full Bio: Heinrich Zemo was a brilliant scientist and strategist who fought against Captain America during World War II. Armed with his intellect and a special adhesive called Adhesive X, Zemo posed a significant threat to the Allied forces. His confrontation with Captain America led to a tragic incident resulting in Bucky Barnes's apparent demise. After World War II, Heinrich Zemo continued his legacy as a formidable adversary to Captain America and the Avengers. His role as the founder of the "Masters of Evil" and his ongoing schemes contribute to his status as one of Captain America's archenemies. Heinrich's character is marked by his brilliant mind, mastery of advanced weaponry, and a deep-seated hatred for Captain America. The legacy of the Zemo family, including his son Helmut Zemo, continues to impact the Marvel Universe. Power Set: Heinrich Zemo does not possess superhuman abilities, relying on his scientific brilliance, combat skills, and strategic acumen. His notable creation, Adhesive X, is a powerful adhesive that proved challenging for Captain America to counter during their initial encounters. Friends and Allies in the Comics: Heinrich Zemo has aligned himself with various villainous organizations, including Hydra and the Masters of Evil. His connections with other iconic villains contribute to the broader network of adversaries faced by Captain America and the Avengers.