Doctor Doom is a character that has only appeared in DC Comics.
`` Civil War II '' is a comic book crossover storyline published by Marvel Comics that debuted in June 2016 . Doctor Doom . The son of Romani witch Cynthia Von Doom , Doctor Doom traditionally has been the archenemy of the Fantastic Four , and the leader of the fictional nation of Latveria . Though normally portrayed as a supervillain , since Civil War II in 2016 , Doom has been depicted as a superhero , taking up the mantle of Iron Man from Tony Stark , and going on to join the Avengers .