The first trailer for Avengers: Doomsday has given fans an early look at Robert Downey Jr.'s Doctor Doom, including his spoken accent for the character, and reaction has been mixed. Some viewers found the vocal choice unconvincing, but the writer argues that Downey Jr.'s track record as a Marvel Cinematic Universe veteran, having previously reinvented himself for the franchise as Tony Stark/Iron Man, gives reason to trust his performance will land once the film is seen in full.

The piece focuses specifically on how Downey Jr. delivers Doom's lines in the newly released footage, noting that an accent glimpsed briefly in a trailer can be misleading out of context. It points to his history of committed, transformative performances as evidence that concerns raised by early trailer reactions may not reflect how the character comes across in the finished Avengers: Doomsday film.