Claim: Doctor Doom is the leader of the Romani people.

Doctor Victor Von Doom -LRB- or simply Doctor Doom -RRB- is a fictional supervillain appearing in American comic books published by Marvel Comics . 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 . He is both a genius inventor and a sorcerer . While his chief opponents have been the Fantastic Four , he has also come into conflict with Iron Man , the Avengers and other superheroes in the Marvel Universe . 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 .   Doctor Doom has made many appearances in video games , television series , and merchandise such as action figures and trading cards . He was ranked as the 4th Greatest Villain by Wizard on its 100 Greatest Villains of All Time list . IGN 's list of the Top 100 Comic Book Villains of All Time ranked Doctor Doom as # 3 .   Doctor Doom has also been featured in other Marvel-endorsed feature films such as Roger Corman 's unreleased 1994 The Fantastic Four played by Joseph Culp , and the 2005 film Fantastic Four and its 2007 sequel Fantastic Four : Rise of the Silver Surfer played by Julian McMahon . Toby Kebbell portrays the character in the 2015 reboot .