Jon Snow in talks for animated sequel. ‘Game of Thrones’ star Kit Harington is in negotiations to lend his voice to a villainous warrior in DreamWorks Animation’s sequel to ‘How to Train Your Dragon.’ He would be joining the returning cast members Jay Baruchel, Gerard Butler, Craig Ferguson, America Ferrera, Jonah Hill, T.J. Miller, Christopher Mintz-Plasse and Kristen Wiig. The first film’s co-writer and co-director, Dean DeBlois, is back to write and direct the sequel. Harington will next be seen on the big screen in the Michael J. Bassett-directed ‘Silent Hill: Revelation 3D,’ which sees him reunite with his ‘Game of Thrones’ co-star Sean Bean. The horror sequel arrives in Irish cinemas in October 2012.