Harry Potter and the Deathly Hallows Part 1-2 (2011)
Harry Potter and the Half-Blood Prince (2009)
Harry Potter and the Order of the Phoenix (2007)
Doctor Who (2012)
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Williams made his film début alongside fellow débutants Hugh Grant and Imogen Stubbs in the Oxford University Film Foundation production Privileged in 1982.
His most famous cinema role is as Arthur Weasley in the Harry Potter film series, which began in 2002. Other high-profile appearances include the film adaptation of Neil Gaiman’s Stardust alongside Michelle Pfeiffer, Robert De Niro and Claire Danes in 2007 and a 2012 role in Doctor Who as Brian Williams, father of the Doctor’s companion, Rory.
Since 2013, he has appeared as the lead role in the BBC costume drama Father Brown. Williams also featured in the first series of Blandings, the BBC TV adaptation of the P. G. Wodehouse Blandings Castle stories, broadcast in 2013, in which he played Beach, the Emsworths’ tipsy butler; he did not return for the show’s second series, for which he was replaced by Tim Vine.
In 2014 and 2015, he presented the BBC daytime game show The Link. The show ran for two series. His other film roles include 101 Dalmatians and The Borrowers, both with Hugh Laurie.
Aside from his acting work, Williams has also presented several documentary programmes exploring his passion for industrial history: Mark Williams’ Big Bangs on the history of explosives, a follow-up to previous series Mark Williams on the Rails, Industrial Revelations and More Industrial Revelations.