Mark Williams (born 22 August 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.
The Fast Show: Just a Load of Blooming Catchphrases
Harry Potter: A History Of Magic
Harry Potter 20th Anniversary: Return to Hogwarts
Harry Potter and the Deathly Hallows: Part 1
Harry Potter and the Order of the Phoenix
Harry Potter and the Half-Blood Prince
Harry Potter and the Deathly Hallows: Part 2
Albert Nobbs
High Heels and Low Lifes
The Canterbury Tales
50 Greatest Harry Potter Moments
Harry Potter and the Chamber of Secrets
Harry Potter and the Goblet of Fire
Shakespeare in Love
Stardust
A Cock and Bull Story
The Borrowers
Exit Wounds
101 Dalmatians
A Room with a View
