Game of Thrones - Gangs of New York - Christopher Robin - Doctor Who - A Knight’s Tale - Merlin

Born in Hertfordshire, Ashton-Griffiths studied at Lancaster University (1975-78), where he was a member of Furness College, and graduated with a BMus. He began his career as a singer with English National Opera at the London Coliseum between 1979 and 1981.

He has appeared in numerous high-profile films, including Terry Gilliam's Brazil (1985) and The Brothers Grimm (2005), Dreamchild (1985), Young Sherlock Holmes (1985), Gene Wilder's Haunted Honeymoon (1986), Roman Polanski's Pirates (1986), Peter Greenaway's The Cook, the Thief, His Wife & Her Lover (1989), Mountains of the Moon (1990), Chicago Joe and the Showgirl (1990), Shadowlands (1993), The Portrait of a Lady (1996), The Wind in the Willows (1996), A Knight's Tale (2001), Martin Scorsese's Gangs of New York (2002), Woody Allen's You Will Meet a Tall Dark Stranger (2010), Olivier Dahan's Grace of Monaco (2014) and Mike Leigh's Mr. Turner(2014).

He has also worked extensively in television, including Jack the Ripper, The Odyssey, Merlin, Margaret, The Tudors, Doctor Who, Coronation Street and Father Brown. He portrays Lord Mace Tyrell in Game of Thrones in Season 4, Season 5, and Season 6.

Ashton-Griffiths lives in London and Suffolk. He is married to Sharmini Thillaimuthu, a BBC studio manager, with whom he has two children. In 2003, he attained an MA in Fine Art from the University of East London, and in 2016, he attained a PhD in Creative Writing from the University of East Anglia.