
Biography
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.
Acted in 91
2020s
- 2025
The Secret Santa Project
Leon
- 2024
Robin and the Hoods
The Mayor
- 2023
The Effects of Lying
Movie
- 2022
Here We Go
Frank · 1 episode
- 2021
The Dark Channel
Mabuse
2010s
- 2018
- 2017
Heidi: Queen of the Mountain
Henry
- 2016
We're Going on a Bear Hunt
Dad (voice)
- 2014
- 2013
- 2011
50 Greatest Harry Potter Moments
Arthur Weasley (archive footage)
Frankenstein's Wedding... Live in Leeds
Alphonse Frankenstein
- 2010
The Indian Doctor
Richard Sharpe · 5 episodes
2000s
- 2009
- 2008
- 2007
A Room with a View
Mr Beebe
- 2006
Viva Blackpool
Tommy Vesty
- 2005
- 2004
Carrie & Barry
Kirk · 12 episodes
The Heart of Me
Man
- 2003
The Fast Show: The Farewell Tour
Various
- 2002
Anita and Me
The Reverend 'Uncle' Alan
The Final Curtain
Declan Farrell
Industrial Revelations
TV
Dick Whittington: The ITV Pantomime
King Rat
- 2001
Combat Sheep
Moose (voice)
Second Star to the Left
Duke (voice)
Happiness
TV
- 2000
Whatever Happened to Harold Smith?
Roland Thornton
The Strangerers
Cadet Flynn · 9 episodes
1990s
- 1999
The Fast Show: You Ain’t Seen These, Right?
Movie
Hunting Venus
Peter
- 1998
The Fast Show Live
Movie
Ted & Ralph
Confirmed Bachelor
- 1997
- 1996
- 1994
Fever
Jukebox Man
Harry Enfield and Chums
Husband on Holiday · 1 episode
99-1
John Samms · 1 episode
- 1993
The Smell of Reeves and Mortimer
TV
- 1992
Bunch Of Five
Tim · 1 episode
- 1991
Merlin of the Crystal Cave
Cerdic · 2 episodes
1980s
- 1989
Great Expectations
Mr. Trabb's Son · 3 episodes
KYTV
TV
- 1988
Coppers
Movie
Alexei Sayle's Stuff
TV
Tumbledown
Lumpy
The Storyteller: Fearnot
Fearnot's Brother
- 1986
- 1982
Privileged
Wilf
No release date
The Dudley Bug
Roderick the Palaeontologist
Mark Williams' Big Bangs
TV
Wrote 4
2020s
- 2022
Super Villans
Writer
- 2020
The Fast Show: Just a Load of Blooming Catchphrases
Writer
1990s
- 1999
The Fast Show: You Ain’t Seen These, Right?
Writer
- 1994
Other crew 1
2020s
- 2022
Super Villans
Presenter
Appearances14
2020s
- 2022
Fantastic Friends
Self · 1 episode
Super Villans
Self
- 2020
The Fast Show: More Blooming Catchphrases
Self/Various Characters
2010s
- 2017
Harry Potter: A History Of Magic
Himself
- 2011
When Harry Left Hogwarts
Self
2000s
- 2009
Steve Coogan: The Inside Story
Self
- 2006
Saxondale: On The Road
Self
The World's Strangest UFO Stories
Self - Narrator (voice) · 6 episodes
- 2004
Mark Williams On The Rails
Self - Presenter · 10 episodes
1990s
- 1999
Suit You Sir! The Inside Leg Of The Fast Show
Self
1960s
- 1964