who plays walter frey in game of thrones
David Bradley (actor) David John Bradley (born 17 April 1942)[1] is an English actor. He is best known for playing Argus Filch in the Harry Potter film series, Walder Frey in the HBO series Game of Thrones and Abraham Setrakian in The Strain, although he is also an established stage actor with a career that includes a Laurence Olivier Award for his role in a production of King Lear.