Mark Williams
Acting • Born 1959-08-22
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.
Filmography
111 credits
Harry Potter and the Goblet of Fire
Movie • 2005
Arthur Weasley
Harry Potter and the Order of the Phoenix
Movie • 2007
Arthur Weasley
Harry Potter and the Half-Blood Prince
Movie • 2009
Arthur Weasley
High Heels and Low Lifes
Movie • 2001
Tremaine
The Borrowers
Movie • 1997
Exterminator Jeff
Harry Potter and the Deathly Hallows: Part 1
Movie • 2010
Arthur Weasley
Harry Potter and the Deathly Hallows: Part 2
Movie • 2011
Arthur Weasley
Dragon Fight
Movie • 1989
Ray
Harry Potter 20th Anniversary: Return to Hogwarts
Movie • 2022
Self
Exit Wounds
Movie • 2001
Cop
Heidi: Queen of the Mountain
Movie • 2017
Henry
Frankenstein's Wedding... Live in Leeds
Movie • 2011
Alphonse Frankenstein
The Effects of Lying
Movie • 2023
Super Villans
Movie • 2022
Self
Viva Blackpool
Movie • 2006
Tommy Vesty
Surprised by Oxford
Movie • 2023
Professor Nuttham
Dream Hacker
Movie • 2025
Edgar Wainwright
Coppers
Movie • 1988
A Cock and Bull Story
Movie • 2005
Ingoldsby
Stardust
Movie • 2007
Billy
Steve Coogan: The Inside Story
Movie • 2009
Self
Anita and Me
Movie • 2002
The Reverend 'Uncle' Alan
When Harry Left Hogwarts
Movie • 2011
Self
The Final Curtain
Movie • 2002
Declan Farrell
Albert Nobbs
Movie • 2011
Sean Casey
Robin and the Hoods
Movie • 2024
The Mayor
Hunting Venus
Movie • 1999
Peter
Second Star to the Left
Movie • 2001
Duke (voice)
A Room with a View
Movie • 2007
Mr Beebe
Red Top
Movie • 2016
Police Commissioner Hamish Pritchard
Combat Sheep
Movie • 2001
Moose (voice)
We're Going on a Bear Hunt
Movie • 2016
Dad (voice)
Whatever Happened to Harold Smith?
Movie • 2000
Roland Thornton
Tumbledown
Movie • 1988
Lumpy
Early Man
Movie • 2018
Barry (voice)
Harry Potter and the Chamber of Secrets
Movie • 2002
Arthur Weasley
Harry Potter and the Prisoner of Azkaban
Movie • 2004
Arthur Weasley
Prince of Jutland
Movie • 1994
Aslak
Fever
Movie • 1994
Jukebox Man
50 Greatest Harry Potter Moments
Movie • 2011
Arthur Weasley (archive footage)
Harry Potter: A History Of Magic
Movie • 2017
Himself
Shakespeare in Love
Movie • 1998
Wabash
101 Dalmatians
Movie • 1996
Horace
Golden Years
Movie • 2016
Phil
Agent Cody Banks 2: Destination London
Movie • 2004
Inspector Crescent
Privileged
Movie • 1982
Wilf
The Fast Show Live
Movie • 1998
Suit You Sir! The Inside Leg Of The Fast Show
Movie • 1999
Self
The Look of Love
Movie • 2013
Follies Director
The Big Game
Movie • 1995
Tommy Hollis
Happy Birthday Shakespeare
Movie • 2000
Ted
The Fast Show: The Farewell Tour
Movie • 2003
Various
Dick Whittington: The ITV Pantomime
Movie • 2002
King Rat
Lead Heads
Movie
The Dark Channel
Movie
Mabuse
The Heart of Me
Movie • 2004
Man
Saxondale: On The Road
Movie • 2006
Self
The Secret Santa Project
Movie • 2025
Leon
The Storyteller: Fearnot
Movie • 1988
Fearnot's Brother
Ted & Ralph
Movie • 1998
Confirmed Bachelor
The Fast Show
TV • 1994
Various Characters
Bottom
TV • 1991
Boris
Alexei Sayle's Stuff
TV • 1988
Midsomer Murders
TV • 1997
Pat Everett
The Smell of Reeves and Mortimer
TV • 1993
Carrie and Barry
TV • 2004
Kirk
Gormenghast
TV • 2000
The Strangerers
TV • 2000
Cadet Flynn
Blandings
TV • 2013
Sebastian Beach
Born Naughty?
TV • 2015
Self - Narrator (voice)
The Rotters' Club
TV • 2005
Sam Williams
Mark Williams' Big Bangs
TV
Industrial Revelations
TV • 2002
Doctor Who
TV • 2005
Brian Williams
Fern
TV • 2011
The Indian Doctor
TV • 2010
Richard Sharpe
Father Brown
TV • 2013
Father Brown
New Tricks
TV • 2004
David Beaumont
KYTV
TV • 1989
99-1
TV • 1994
John Samms
Chef
TV • 1993
Policeman 2
Gormenghast
TV • 2000
Professor Perch
Hustle
TV • 2004
Dale Ridley
Peak Practice
TV • 1993
Roland Grogan
The Musketeers
TV • 2014
Pathologist
Jumpers for Goalposts
TV • 2001
Tommy Stein
Saxondale
TV • 2006
Deggsy
Fun at the Funeral Parlour
TV • 2001
Casualty
TV • 1986
Des Jones
Happiness
TV • 2001
Red Dwarf
TV • 1988
Olaf Petersen
Sister Boniface Mysteries
TV • 2022
Father Brown
Little Crackers
TV • 2010
Father Christmas
Sense and Sensibility
TV • 2008
Sir John Middleton
Comedy Lab
TV • 1998
Mr. Anderson
Mark Williams On The Rails
TV • 2004
Self - Presenter
Agatha Christie's Marple
TV • 2004
Commander Peters
Merlin
TV • 2008
The Goblin (voice)
Here We Go
TV • 2022
Frank
The World's Strangest UFO Stories
TV • 2006
Self - Narrator (voice)
Loose Women
TV • 1999
Self
Being Human
TV • 2009
Regus
Top of the Pops
TV • 1964
Self - Host
The One Show
TV • 2006
Self
Harry Enfield and Chums
TV • 1994
Husband on Holiday
Shackleton
TV • 2002
Dudley Docker
The Storyteller
TV • 1988
Fearnot's Brother
Great Expectations
TV • 1989
Mr. Trabb's Son
Merlin of the Crystal Cave
TV • 1991
Cerdic
Fantastic Friends
TV • 2022
Self
Star
TV • 2003
Mr Fisher