New 'Avengers: Doomsday' Star Confirms Scenes With RDJ's Doctor Doom

A newly confirmed cast member of Avengers: Doomsday has acknowledged filming scenes alongside Robert Downey Jr.'s Victor Von Doom. Marvel Studios has closely guarded plot details, and RDJ's return to the MCU as the villain remains one of the film's biggest mysteries. Trailers hint at Doom's menace but reveal little about the extent of his role.