Richard Chamberlain
Aramis
Frank Finlay
Porthos / O'Reilly
Faye Dunaway
Lady de Winter
Raquel Welch
Constance de Bonancieux
Geraldine Chaplin
Anna of Austria
Jean-Pierre Cassel
Louis XIII
Spike Milligan
M. Bonancieux
Charlton Heston
Cardinal Richelieu
Simon Ward
Duke of Buckingham
Joss Ackland
D’Artagnan’s Father
Gretchen Franklin
D’Artagnan’s Mother
Francis de Wolff
Sea Captain
Frank Thornton
Man in Small Carriage (uncredited)
John Bluthal
Various Roles (voice)
Michael Hordern
Treville (voice)
Richard Briers
Louis XIII (voice)