"The part is this very quiet, optimistic writer - very sort of timid - and Damian Lewis is not like that at all... He came in and read it, and it sounded like two guys about to go out and get into a bar fight! He was like, 'I don't think I'm right for this'." Matt Leblanc reveals even Homeland star Damian Lewis knew he was the wrong man for the role of Sean in TV comedy Extras. The part eventually went to comedian Stephen Mangan.