The Marvel Cinematic Universe is showing no signs of slowing down, with the studio constantly putting out new projects in theaters and streaming with a Disney+ subscription. Arguably the most highly anticipated upcoming Marvel movie is The Russo Brothers' Avengers: Doomsday, which looks like an epic crossover event. Robert Downey Jr. is returning to the MCU as Doctor Doom, and even he was nerding out about the OG stars of the X-Men movies reprising their roles on set.
What we know about Avengers: Doomsday has been limited, but the huge list of characters has been buoying excitement. The Doomsday cast features entire teams of heroes, including the X-Men. During a conversation with EW at San Diego Comic-Con, RDJ gushed about seeing actors like Rebecca Romijn and Kesley Grammer back as their (blue) mutants. As he put it:
