James Purefoy

Thomas Marshall

Kate Mara

Lady Isabel

Jason Flemyng

Becket

Paul Giamatti

King John

Brian Cox

Albany

Derek Jacobi

Cornhill

Charles Dance

Stephen Langton, Archbishop of Canterbury

Aneurin Barnard

Guy

Jamie Foreman

Coteral

Mackenzie Crook

Marks

Rhys Parry Jones

Wulfstan

Vladimir Kulich

Tiberius

David Melville

Baron Darnay

Annabelle Apsion

Maddy

Steffan Rhodri

Cooper

Daniel O'Meara

Phipps

Bree Condon

Agnes

Guy Siner

Oaks

Marcus Hoyland

Abbott Marcus

John Pierce Jones

Cook