1. Rory McCann - Sandman
Everything that made McCann a glorious casting choice for Game Of Thrones brute Sandor 'The Hound' Clegane makes him a strong candidate to play the Sandman for the future spin-off. He is a blunt object, six foot six inches tall and as imposing a figure as you're likely to find working currently, His performance as The Hound would offer a strong foundation for the role of Flint Marko, considering the inherent contradiction of Sandor's immense physicality, and definition by violence, and his infatuation with Sansa Stark, and McCann more than sells both sides of the character. One likely stumbling block would be the Scottish actor's ability to convincingly pull off the pre-requisite American accent, but that could be overcome by leaving the character less verbose and more physically focused than some of the other Sinister Six members, which could hopefully also add a greater element of mystery to the performance. Anything that avoids turning him into the overly-emotional hang-dog that he became in Spider-Man 3 can only be a good thing. Who do you think should be cast in The Sinister Six Movie? Share your picks below in the comments thread.