Baron Zemo

Baron Zemo is an American action drama comic book series published by Marvel Comics' Black imprint, being based on one of Marvel's most famous villains, the infamous terrorist and Hydra agent Baron Helmut Zemo.

Main

 * Baron Helmut Zemo - the son of Heinrich Zemo and the current Baron of the Zemo household who despises the world for taking his father from him.

Supporting

 * Ophelia Sarkissian/Madame Hydra/Viper - one of the generals of the organization Hydra. She has immense respect for and lusts after Zemo.
 * Arnim Zola - Zemo's life-long companion who is a genius that transferred his mind into a robotic body. He invents most of Zemo's gadgets and is the current head scientist of Hydra.
 * Doughboy - a creation of Zola's which is a strange floating creature that obeys his commands.
 * Brock Rumlow/Crossbones - a very large and very intimidating member of Hydra who was trained by some of Hydra's best warriors and is a rather deadly enemy.
 * Baron Wolfgang von Strucker - the Supreme Hydra above all others. Everyone respects him and no one dares question him due to his incredible abilities.
 * Sinthea Schmidt/Sin - the daughter of the deceased Johann Schmidt, AKA Red Skull, who follows in her father's footsteps, joining Hydra as a soldier.
 * The Negotiator - an original character for Marvel Black who is a Hydra agent that shows up for meetings that aren't intended to go violent.

Antagonists

 * Steven "Steve" Rogers/Captain America - Zemo's arch enemy who he blames for the death of his father. He rarely appears and is usually shown in heavy shadow.
 * S.H.I.E.L.D., Hydra's main enemy which is an agency of spies.
 * Nicholas "Nick" Fury - the head of S.H.I.E.L.D. who lost an eye during a battle with Baron Strucker. He prefers to work from behind the scenes but does show up when he has to.
 * Maria Hill - the second-in-command of S.H.I.E.L.D. and the field leader of most S.H.I.E.L.D. battles who is meant to take over when Nick dies.
 * Sharon Carter/Agent 13 - a very talented and incredible agent who is one of the best soldiers S.H.I.E.L.D. has and thus is there during most battles.