Doctor Doom

Doctor Doom, also known as Victor Von Doom, is one of Marvel's most iconic villains, a brilliant inventor and sorcerer who often battles the Fantastic Four. His complex character combines intelligence, ambition, and a deep-seated desire for power and control. In 'The Fantastic Four: First Steps', he is hinted at in a mid-credits scene that suggests a sinister interest in the newborn Franklin Richards, setting the stage for future conflict in the Marvel Cinematic Universe.