English actor who was introduced to American audiences through his role as Argus Filch in the Harry Potter film franchise. His theater performance in King Lear earned him a Laurence Olivier Award.
He was an award-winning theater actor in the 1980s before making the jump to television and film.
In 2010, he took on recurring television roles in Mount Pleasant and Prisoners Wives.
He has been married to Rosanna Bradley.
He acted alongside Simon Pegg on multiple occasions, including in the 2013 comedy film, The World's End.