James Purefoy character Thomas Marshall
Kate Mara character Lady Isabel
Jason Flemyng character Becket
Paul Giamatti character King John
Brian Cox character Albany
Derek Jacobi character Cornhill
Charles Dance character Stephen Langton, Archbishop of Canterbury
Aneurin Barnard character Guy
Jamie Foreman character Coteral
Mackenzie Crook character Marks
Rhys Parry Jones character Wulfstan
Vladimir Kulich character Tiberius
David Melville character Baron Darnay
Annabelle Apsion character Maddy
Steffan Rhodri character Cooper
Daniel O'Meara character Phipps
Bree Condon character Agnes
Guy Siner character Oaks
Marcus Hoyland character Abbott Marcus
John Pierce Jones character Cook
Jeff Jones character Head Clerk
Ceri Mears character Blacksmith
Kenneth Collard character Sapper Captain
Wyn Bowen Harries character Baron
Dewi Williams character Baron
John Weldon character Castle Darney Sentry
Laura Sibbick character Castle Servant Girl
Edward Manning character Mercenary
Simon Nader character Hungarian Mercenaries (voice)
Steve Purbrick character Tavern Landlord
Peter Bartfay character Hungarian Mercenaries (voice) (uncredited)
Dan Burman character Mercenary Scout (uncredited)
Ian M. Court character Priest (uncredited)
David Harkus character Young Soldier (uncredited)
Gerald Royston Horler character Hungarian Warrior (uncredited)
Rhys Horler character Hungarian Warrior (uncredited)
Rhi Louise character Topless Wench (uncredited)
Stuart Mager character Garrison Guard (uncredited)
Christian Morgan character Wounded Guard (uncredited)
Stevie Raine character Mercenary Fight Performer (uncredited)
Carlton Venn character King's Aid 2 (uncredited)
