Avengers directors Joe and Anthony Russo are keeping schtum about the plot circumstances surrounding Robert Downey Jr's Doctor Doom role, but they have teased a one-of-a-kind performance from the one-time Iron Man actor.

Joe Russo described Doomsday and Infinity War as “a new beginning” for the MCU. The greatest thing that ever happened is we got to, you know, get immersed in you know a 20 movie arc and and see an ending to that arc.

Anthony Russo was recently asked how they will explain RDJ’s return and his answer was well, mysterious: “We can’t explain that as it’s part of the story,” he said with