@yawaustinDoomsday is bringing in multiple Dr. Doom variants rather than limiting the roster to just two. The primary antagonist will be the version portrayed by RDJ, but the MCU is handling this similarly to how it set up Kang across the Multiverse. That means we are looking at several different actors taking on the role of Doom. Cillian Murphy is confirmed for a variant, and so is Michael Fassbender, who previously played Magneto in Days of Future Past. It is also worth noting that not every single Dr. Doom variant appearing in the film will necessarily be a bad guy

@yawaustinDoomsday is bringing in multiple Dr. Doom variants rather than limiting the roster to just two. The primary antagonist will be the version portrayed by RDJ, but the MCU is handling this similarly to how it set up Kang across the Multiverse. That means we are looking at several different actors taking on the role of Doom. Cillian Murphy is confirmed for a variant, and so is Michael Fassbender, who previously played Magneto in Days of Future Past. It is also worth noting that not every single Dr. Doom variant appearing in the film will necessarily be a bad guy