Peter Mullan ( ; born 2 November 1959 ) is a Scottish actor and filmmaker . He is best known for his role in Ken Loach 's '' My Name Is Joe '' ( 1998 ) , for which he won Best Actor Award at 1998 Cannes Film Festival and '' The Claim '' ( 2000 ) . He is also winner of the World Dramatic Special Jury Prize for Breakout Performances at 2011 Sundance Film Festival for his work on Paddy Considine 's '' Tyrannosaur '' ( 2011 ) . Mullan appeared as supporting or guest actor in numerous cult movies , including '' Riff-Raff '' ( 1991 ) , '' Braveheart '' ( 1995 ) , '' Trainspotting '' ( 1996 ) , '' Young Adam '' ( 2003 ) , '' Children of Men '' ( 2006 ) , '' War Horse '' ( 2011 ) and the '' Harry Potter '' film series ( 2010 – 11 )
1998 Cannes Film Festival
1998 Cannes Film Festival
Peter Mullan