
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.

Arthur Weasley
Harry Potter and the Goblet of Fire

Arthur Weasley
Harry Potter and the Order of the Phoenix

Arthur Weasley
Harry Potter and the Half-Blood Prince

Tremaine
High Heels and Low Lifes

Exterminator Jeff
The Borrowers

Arthur Weasley
Harry Potter and the Deathly Hallows: Part 1

Arthur Weasley
Harry Potter and the Deathly Hallows: Part 2

Ray
龍在天涯

Self
Harry Potter 20th Anniversary: Return to Hogwarts

Cop
Exit Wounds

Henry
Heidi: Queen of the Mountain

Alphonse Frankenstein
Frankenstein's Wedding... Live in Leeds

The Effects of Lying

Self
Super Villans

Tommy Vesty
Viva Blackpool

Professor Nuttham
Surprised by Oxford

Edgar Wainwright
Dream Hacker

Coppers

Ingoldsby
A Cock and Bull Story

Billy
Stardust

Self
Steve Coogan: The Inside Story

The Reverend 'Uncle' Alan
Anita and Me

Self
When Harry Left Hogwarts

Declan Farrell
The Final Curtain

Sean Casey
Albert Nobbs

The Mayor
Robin and the Hoods

Peter
Hunting Venus

Duke (voice)
Second Star to the Left

Mr Beebe
A Room with a View

Police Commissioner Hamish Pritchard
Red Top

Moose (voice)
Combat Sheep

Dad (voice)
We're Going on a Bear Hunt

Roland Thornton
Whatever Happened to Harold Smith?

Lumpy
Tumbledown

Barry (voice)
Early Man

Arthur Weasley
Harry Potter and the Prisoner of Azkaban

Arthur Weasley
Harry Potter and the Chamber of Secrets

Aslak
Prince of Jutland

Jukebox Man
Fever

Arthur Weasley (archive footage)
50 Greatest Harry Potter Moments

Himself
Harry Potter: A History Of Magic

Wabash
Shakespeare in Love

Horace
101 Dalmatians

Phil
Golden Years

Inspector Crescent
Agent Cody Banks 2: Destination London

Wilf
Privileged

The Fast Show Live

Self
Suit You Sir! The Inside Leg Of The Fast Show

Follies Director
The Look of Love

Tommy Hollis
The Big Game

Ted
Happy Birthday Shakespeare

Various
The Fast Show: The Farewell Tour

King Rat
Dick Whittington: The ITV Pantomime

Lead Heads

Mabuse
The Dark Channel

Man
The Heart of Me

Self
Saxondale: On The Road

Leon
The Secret Santa Project
Known For
Acting
Known Credits
58
Gender
Male
Birthday
1959-08-22
Place of Birth
Bromsgrove, Worcestershire, England, UK
Also Known As
مارک ویلیامز