Mark Williams
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.
Acting
Movie
Harry Potter and the Chamber of Secrets
as Arthur Weasley
2002
Movie
Harry Potter and the Prisoner of Azkaban
as Arthur Weasley
2004
Movie
Harry Potter and the Goblet of Fire
as Arthur Weasley
2005
Movie
Harry Potter and the Deathly Hallows: Part 2
as Arthur Weasley
2011
Movie
Harry Potter and the Order of the Phoenix
as Arthur Weasley
2007
Movie
Harry Potter and the Half-Blood Prince
as Arthur Weasley
2009
Movie
Harry Potter and the Deathly Hallows: Part 1
as Arthur Weasley
2010
Movie
Stardust
as Billy
2007
Movie
101 Dalmatians
as Horace
1996
Movie
Harry Potter 20th Anniversary: Return to Hogwarts
as Self
2022
TV
Doctor Who
as Brian Williams
2005
Movie
Shakespeare in Love
as Wabash
1998
TV
Merlin
as The Goblin (voice)
2008
Movie
Early Man
as Barry (voice)
2018
Movie
Agent Cody Banks 2: Destination London
as Inspector Crescent
2004
Movie
Exit Wounds
as Cop
2001
Movie
Albert Nobbs
as Sean Casey
2011
Movie
The Borrowers
as Exterminator Jeff
1997
TV
Red Dwarf
as Olaf Petersen
1988
TV
Midsomer Murders
as Pat Everett
1997
TV
The Storyteller
as Fearnot's Brother
1988
TV
Being Human
as Regus
2009
TV
The Musketeers
as Pathologist
2014
TV
Hustle
as Dale Ridley
2004