Mark Williams

Mark Williams returned as Arthur Weasley, the Weasley family patriarch, whom he has portrayed in all of the Harry Potter films. His additional film credits include Matthew Vaughn's "Stardust," Michael Winterbottom's "Tristram Shandy: A Cock and Bull Story," Metin Hüseyin's "Anita and Me," Peter Hewitt's "The Borrowers," Stephen Herek's "101 Dalmatians," Carine Adler's "Fever," Gabriel Axel's "Prince of Jutland," Clare Peploe's "High Season," the British Film Institute's "Out of Order" and Michael Hoffman's "Privileged."

Williams is perhaps still best known in the U.K. as a regular on the BBC TV series "The Fast Show," on which he appeared for four seasons, as well as a Christmas special. His more recent television work includes the miniseries adaptation of Jane Austen's "Sense and Sensibility"; the telefilms "Blood in the Water," "Marple: Why Didn't They Ask Evans?," "A Room with a View," "Viva Blackpool" and "Shackleton"; and the series "Carrie & Barry" and "Grass." He has also guest starred on numerous series, and was a team host on the quiz show "Jumpers for Goalposts."

In 2002, Williams presented a 10-part series for the Discovery Channel, entitled "Industrial Revelations with Mark Williams," followed by 2004's "On the Rails with Mark Williams" and 2005's "More Industrial Revelations with Mark Williams." His most recent documentary was "Mark Williams' Big Bangs," a four-part series for Sky One. In addition, Williams has directed for the Channel 4 sitcom "Festival" and co-produced the Channel 4 sitcom "In Exile."

A graduate of Oxford University, Williams has also worked extensively on the stage. He spent three years touring by narrowboat with the Mikron Theatre Company. His credits also include the title role in "William" for the Royal Court Theatre's Young Writers Festival; "Fanshen" at the National Theatre; "Doctor of Honour," for the Cheek by Jowl Theatre Company; "The City Wives Confederacy" at Greenwich Theatre; "Moscow Gold," "Singer," "A Dream of People" and "As You Like It," for the Royal Shakespeare Company; "Art" in the West End; and "Toast" at the Royal Court Theatre. In 1988, he enjoyed a sold-out run in "The Fast Show Live on Stage." In 2002, "The Fast Show Live on Tour" played to great success across the U.K.

Warner Bros.