The award-winning actor has done some fanastic work before he left for the world of George R. R. Martin's Westeros. Here are our favourites. If you haven't watched these films yet, we recommend you start today.
1. K.C. Munk in Pete Smalls Is Dead (2010)
2. Peter and Frank in Death At A Funeral (2007 and 2010 respectively)
3. Tito in Living In Oblivion (1995)
4. Rowlie in Lassie (2005)
5. Ben Klandis in Find Me Guilty (2006)
6. Trumpkin in Chronicles Of Narnia, Prince Caspian (2008)
7. Miles Finch in Elf (2003)