Mark Williams
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.
Known For

Midsomer Murders

Doctor Who

Top of the Pops

Casualty

Father Brown

Agatha Christie's Marple

New Tricks

Peak Practice
All Movies (61)
- The Secret Santa Project2025 · as Leon
- Dream Hacker2025 · as Edgar Wainwright
- Robin and the Hoods2024 · as The Mayor
- Surprised by Oxford2023 · as Professor Nuttham
- The Effects of Lying2023
- Super Villans2022 · as Self
- Harry Potter 20th Anniversary: Return to Hogwarts2022 · as Self
- The Fast Show: More Blooming Catchphrases2020 · as Self/Various Characters
- Early Man2018 · as Barry (voice)
- Heidi: Queen of the Mountain2017 · as Henry
- Harry Potter: A History Of Magic2017 · as Himself
- We're Going on a Bear Hunt2016 · as Dad (voice)
- Golden Years2016 · as Phil
- Red Top2016 · as Police Commissioner Hamish Pritchard
- The Look of Love2013 · as Follies Director
- Albert Nobbs2011 · as Sean Casey
- When Harry Left Hogwarts2011 · as Self
- 50 Greatest Harry Potter Moments2011 · as Arthur Weasley (archive footage)
- Harry Potter and the Deathly Hallows: Part 22011 · as Arthur Weasley
- Frankenstein's Wedding... Live in Leeds2011 · as Alphonse Frankenstein
- Harry Potter and the Deathly Hallows: Part 12010 · as Arthur Weasley
- Steve Coogan: The Inside Story2009 · as Self
- Harry Potter and the Half-Blood Prince2009 · as Arthur Weasley
- A Room with a View2007 · as Mr Beebe
- Stardust2007 · as Billy
- Harry Potter and the Order of the Phoenix2007 · as Arthur Weasley
- Saxondale: On The Road2006 · as Self
- Viva Blackpool2006 · as Tommy Vesty
- Harry Potter and the Goblet of Fire2005 · as Arthur Weasley
- A Cock and Bull Story2005 · as Ingoldsby
- Harry Potter and the Prisoner of Azkaban2004 · as Arthur Weasley
- Agent Cody Banks 2: Destination London2004 · as Inspector Crescent
- The Heart of Me2004 · as Man
- The Fast Show: The Farewell Tour2003 · as Various
- Anita and Me2002 · as The Reverend 'Uncle' Alan
- Harry Potter and the Chamber of Secrets2002 · as Arthur Weasley
- The Final Curtain2002 · as Declan Farrell
- Dick Whittington: The ITV Pantomime2002 · as King Rat
- Combat Sheep2001 · as Moose (voice)
- Second Star to the Left2001 · as Duke (voice)
- High Heels and Low Lifes2001 · as Tremaine
- Exit Wounds2001 · as Cop
- Happy Birthday Shakespeare2000 · as Ted
- Whatever Happened to Harold Smith?2000 · as Roland Thornton
- Suit You Sir! The Inside Leg Of The Fast Show1999 · as Self
- Hunting Venus1999 · as Peter
- The Fast Show Live1998
- Ted & Ralph1998 · as Confirmed Bachelor
- Shakespeare in Love1998 · as Wabash
- The Borrowers1997 · as Exterminator Jeff
- 101 Dalmatians1996 · as Horace
- The Big Game1995 · as Tommy Hollis
- Fever1994 · as Jukebox Man
- Prince of Jutland1994 · as Aslak
- Dragon Fight1989 · as Ray
- Coppers1988
- Tumbledown1988 · as Lumpy
- The Storyteller: Fearnot1988 · as Fearnot's Brother
- Privileged1982 · as Wilf
- Lead Heads—
- The Dark Channel— · as Mabuse
All TV Shows (51)
- Fantastic Friends2022 · as Self
- Here We Go2022 · as Frank
- Sister Boniface Mysteries2022 · as Father Brown
- Born Naughty?2015 · as Self - Narrator (voice)
- The Musketeers2014 · as Pathologist
- Father Brown2013 · as Father Brown
- Blandings2013 · as Sebastian Beach
- Fern2011
- Little Crackers2010 · as Father Christmas
- The Indian Doctor2010 · as Richard Sharpe
- Being Human2009 · as Regus
- Merlin2008 · as The Goblin (voice)
- A Room with a View2008 · as Mr Beebe
- Sense and Sensibility2008 · as Sir John Middleton
- The One Show2006 · as Self
- Saxondale2006 · as Deggsy
- The World's Strangest UFO Stories2006 · as Self - Narrator (voice)
- Doctor Who2005 · as Brian Williams
- The Rotters' Club2005 · as Sam Chase
- Agatha Christie's Marple2004 · as Commander Peters
- Carrie & Barry2004 · as Kirk
- Mark Williams On The Rails2004 · as Self - Presenter
- Hustle2004 · as Dale Ridley
- New Tricks2004 · as David Beaumont
- Star2003 · as Mr Fisher
- Industrial Revelations2002
- Shackleton2002 · as Dudley Docker
- Happiness2001
- Jumpers for Goalposts2001 · as Tommy Stein
- Fun at the Funeral Parlour2001
- The Strangerers2000 · as Cadet Flynn
- Gormenghast2000 · as Professor Perch
- Loose Women1999 · as Self
- Comedy Lab1998 · as Mr. Anderson
- Midsomer Murders1997 · as Pat Everett
- Harry Enfield and Chums1994 · as Husband on Holiday
- The Fast Show1994 · as Various Characters
- 99-11994 · as John Samms
- The Smell of Reeves and Mortimer1993
- Peak Practice1993 · as Roland Grogan
- Chef1993 · as Policeman 2
- Merlin of the Crystal Cave1991 · as Cerdic
- Bottom1991 · as Boris
- Great Expectations1989 · as Mr. Trabb's Son
- KYTV1989
- Alexei Sayle's Stuff1988
- The Storyteller1988 · as Fearnot's Brother
- Red Dwarf1988 · as Olaf Petersen
- Casualty1986 · as Des Jones
- Top of the Pops1964 · as Self - Host
- Mark Williams' Big Bangs—