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Mark Williams (born August 22, 1959) is an English actor, comedian, presenter and screenwriter. He first achieved widespread recognition as one of the central performers in the popular BBC sketch show The Fast Show. His film roles include Horace in the 1996 adaptation of 101 Dalmatians and Arthur Weasley in seven of the Harry Potter films. He made recurring appearances as Brian Williams in the BBC television series Doctor Who and as Olaf Petersen in Red Dwarf. Since 2013, Williams has portrayed the title character in the long-running BBC series loosely based on the Father Brown short stories by G. K. Chesterton.
as Leon
as Edgar Wainwright
as The Mayor
as Professor Nuttham
as Self
as Mabuse
as Self/Various Characters
as Barry (voice)
as Henry
as Himself
as Dad (voice)
as Phil
as Police Commissioner Hamish Pritchard
as Follies Director
as Sean Casey
as Self
as Arthur Weasley (archive footage)
as Arthur Weasley
as Alphonse Frankenstein
as Arthur Weasley
as Arthur Weasley
as Mr Beebe
as Billy
as Arthur Weasley
as Self
as Tommy Vesty
as Arthur Weasley
as Ingoldsby
as Arthur Weasley
as Inspector Crescent
as Man
as Various
as The Reverend 'Uncle' Alan
as Arthur Weasley
as Declan Farrell
as King Rat
as Moose (voice)
as Duke (voice)
as Tremaine
as Cop
as Roland Thornton
as Peter
as Confirmed Bachelor
as Wabash
as Exterminator Jeff
as Horace
as Tommy Hollis
as Jukebox Man
as Aslak
as Lumpy
as Fearnot's Brother
as Wilf
as Roderick the Palaeontologist
