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Known for Acting
Born 1959-08-22 in Bromsgrove, Worcestershire, England, UK
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.
Dream Hacker (2025) — Edgar Wainwright
The Secret Santa Project (2025) — Leon
Robin and the Hoods (2024) — The Mayor
The Effects of Lying (2023)
Surprised by Oxford (2023) — Professor Nuttham
Harry Potter 20th Anniversary: Return to Hogwarts (2022) — Self
Super Villans (2022) — Self
Sister Boniface Mysteries (2022) — Father Brown · 1 episode
Here We Go (2022) — Frank · 1 episode
Fantastic Friends (2022) — Self · 1 episode
The Dark Channel (2021) — Mabuse
The Fast Show: More Blooming Catchphrases (2020) — Self/Various Characters
Early Man (2018) — Barry (voice)
Heidi: Queen of the Mountain (2017) — Henry
Harry Potter: A History Of Magic (2017) — Himself
Red Top (2016) — Police Commissioner Hamish Pritchard
We're Going on a Bear Hunt (2016) — Dad (voice)
Golden Years (2016) — Phil
Born Naughty? (2015) — Self - Narrator (voice) · 1 episode
The Musketeers (2014) — Pathologist · 2 episodes
The Look of Love (2013) — Follies Director
Blandings (2013) — Sebastian Beach · 6 episodes
Father Brown (2013) — Father Brown · 140 episodes
Harry Potter and the Deathly Hallows: Part 2 (2011) — Arthur Weasley
Frankenstein's Wedding... Live in Leeds (2011) — Alphonse Frankenstein
When Harry Left Hogwarts (2011) — Self
Albert Nobbs (2011) — Sean Casey
50 Greatest Harry Potter Moments (2011) — Arthur Weasley (archive footage)
Fern (2011) · 1 episode
Harry Potter and the Deathly Hallows: Part 1 (2010) — Arthur Weasley
The Indian Doctor (2010) — Richard Sharpe · 5 episodes
Little Crackers (2010) — Father Christmas · 1 episode
Harry Potter and the Half-Blood Prince (2009) — Arthur Weasley
Steve Coogan: The Inside Story (2009) — Self
Being Human (2009) — Regus · 2 episodes
Sense and Sensibility (2008) — Sir John Middleton · 3 episodes
Merlin (2008) — The Goblin (voice) · 1 episode
A Room with a View (2008) — Mr Beebe · 2 episodes
Harry Potter and the Order of the Phoenix (2007) — Arthur Weasley
Stardust (2007) — Billy
A Room with a View (2007) — Mr Beebe
Viva Blackpool (2006) — Tommy Vesty
Saxondale: On The Road (2006) — Self
Saxondale (2006) — Deggsy · 1 episode
The World's Strangest UFO Stories (2006) — Self - Narrator (voice) · 6 episodes
The One Show (2006) — Self · 1 episode
Harry Potter and the Goblet of Fire (2005) — Arthur Weasley
A Cock and Bull Story (2005) — Ingoldsby
Doctor Who (2005) — Brian Williams · 2 episodes
The Rotters' Club (2005) — Sam Chase · 3 episodes
Harry Potter and the Prisoner of Azkaban (2004) — Arthur Weasley
Agent Cody Banks 2: Destination London (2004) — Inspector Crescent
The Heart of Me (2004) — Man
Carrie & Barry (2004) — Kirk · 12 episodes
New Tricks (2004) — David Beaumont · 1 episode
Hustle (2004) — Dale Ridley · 1 episode
Mark Williams On The Rails (2004) — Self - Presenter · 10 episodes
Agatha Christie's Marple (2004) — Commander Peters · 1 episode
The Fast Show: The Farewell Tour (2003) — Various
Star (2003) — Mr Fisher · 13 episodes
Anita and Me (2002) — The Reverend 'Uncle' Alan
The Final Curtain (2002) — Declan Farrell
Harry Potter and the Chamber of Secrets (2002) — Arthur Weasley
Dick Whittington: The ITV Pantomime (2002) — King Rat
Industrial Revelations (2002) · 46 episodes
Shackleton (2002) — Dudley Docker · 1 episode
High Heels and Low Lifes (2001) — Tremaine
Exit Wounds (2001) — Cop
Second Star to the Left (2001) — Duke (voice)
Combat Sheep (2001) — Moose (voice)
Jumpers for Goalposts (2001) — Tommy Stein · 8 episodes
Fun at the Funeral Parlour (2001) · 1 episode
Happiness (2001) · 1 episode
Whatever Happened to Harold Smith? (2000) — Roland Thornton
Happy Birthday Shakespeare (2000) — Ted
The Strangerers (2000) — Cadet Flynn · 9 episodes
Gormenghast (2000) — Professor Perch · 1 episode
Hunting Venus (1999) — Peter
Suit You Sir! The Inside Leg Of The Fast Show (1999) — Self
The Fast Show: You Ain’t Seen These, Right? (1999)
Loose Women (1999) — Self · 1 episode
Shakespeare in Love (1998) — Wabash
The Fast Show Live (1998)
Ted & Ralph (1998) — Confirmed Bachelor
Comedy Lab (1998) — Mr. Anderson · 1 episode
The Borrowers (1997) — Exterminator Jeff
Midsomer Murders (1997) — Pat Everett · 1 episode
101 Dalmatians (1996) — Horace
The Big Game (1995) — Tommy Hollis
Prince of Jutland (1994) — Aslak
Fever (1994) — Jukebox Man
The Fast Show (1994) — Various Characters · 34 episodes
Harry Enfield and Chums (1994) — Husband on Holiday · 1 episode
99-1 (1994) — John Samms · 1 episode
The Smell of Reeves and Mortimer (1993) · 12 episodes
Chef (1993) — Policeman 2 · 1 episode
Peak Practice (1993) — Roland Grogan · 1 episode
Bunch Of Five (1992) — Tim · 1 episode
Bottom (1991) — Boris · 1 episode
Merlin of the Crystal Cave (1991) — Cerdic · 2 episodes
Kinsey (1991) — Danny · 6 episodes
KYTV (1989) · 1 episode
Great Expectations (1989) — Mr. Trabb's Son · 3 episodes
Coppers (1988)
Tumbledown (1988) — Lumpy
The Storyteller: Fearnot (1988) — Fearnot's Brother
Alexei Sayle's Stuff (1988) · 18 episodes
Red Dwarf (1988) — Olaf Petersen · 3 episodes
The Storyteller (1988) — Fearnot's Brother · 1 episode
Casualty (1986) — Des Jones · 1 episode
Privileged (1982) — Wilf
Top of the Pops (1964) — Self - Host · 1 episode
Lead Heads
The Dudley Bug — Roderick the Palaeontologist
Mark Williams' Big Bangs · 4 episodes