Richard Burton
Thomas Becket

Peter O'Toole
King Henry II of England

John Gielgud
King Louis VII of France

Gino Cervi
Cardinal Zambelli

Paolo Stoppa
Pope Alexander III

Donald Wolfit
Bishop Folliot

David Weston
Brother John

Martita Hunt
Empress Matilda

Pamela Brown
Queen Eleanor of Aquitaine

Percy Herbert
Baron

Siân Phillips
Gwendolen

Felix Aylmer
Archbishop of Canterbury

Niall MacGinnis
Baron

Christopher Rhodes
Baron

John Phillips
Bishop of Winchester

Frank Pettingell
Bishop of York

Véronique Vendell
French Prostitute

Jennifer Hilary
Peasant's Daughter

Hamilton Dyce
Bishop of Chichester

Peter Jeffrey
Baron

Geoffrey Bayldon
Brother Philip (uncredited)

Dave Clark
Soldier (uncredited)

Guy Deghy
Man (uncredited)

Paul Farrell
Farmer (uncredited)

Magda Konopka
Girl on Balcony (uncredited)

Wilfrid Lawson
Old Soldier (uncredited)

Tutte Lemkow
French Courtier (uncredited)

Linda Marlowe
Farmer's Daughter (uncredited)

John Moulder-Brown
Boy (uncredited)

Patrick Newell
William of Corbeil (uncredited)

Frederick Piper
Monk (uncredited)

Dido Plumb
Man in Crowd (uncredited)

Steve Plytas
Cardinal (uncredited)

Robert Rietti
Alexander III (voice) (uncredited)

Alex Scott
Priest (uncredited)

Victor Spinetti
French Tailor (uncredited)

Graham Stark
Pope's Secretary (uncredited)

Elizabeth Taylor
Blonde Village Woman (uncredited)

Royston Tickner
Royal Servant (uncredited)

Edward Woodward
Clement (uncredited)