Idris Elba has just switched from the MCU to the DCEU with The Suicide Squad, but it might not be permanent. The British star has played Heimdall, the wise Asgardian gatekeeper of the Bifrost, since 2011's Thor, but his character was tragically killed at the beginning of Avengers: Infinity War. However, as pretty much all of the characters who died in that movie have since returned in some form, there's a chance Heimdall's story is not over yet.