4. Col. Steve Trevor
Man of Steel showed that Warner Bros. are keen to introduce some racial diversity into their cinematic universe with the casting of Laurence Fishburne as Perry White, so it’s hard to imagine anyone having an issue with Dwayne Johnson taking on a role like Colonel Steve Trevor! The A.R.G.U.S. agent was assigned to act as the UN’s liaison to the newly formed Justice League, but fell in love with Wonder Woman long before that after landing on the Amazonian island she hails from. However, their very public break-up becomes a source of humiliation for the Colonel, something which makes it extremely hard for him to then have to see her on a regular basis as part of his dealings with the League. It would be great to see Johnson surprise everyone by not playing a superpowered character, but a role which is still just as – if not more – interesting.