- Sylvia Kristel
- Maria Theresa
- Ursula Andress
- Louise de la Vallière
- Beau Bridges
- King Louis XIV / Philippe of Gascony
- Cornel Wilde
- D'Artagnan
- Ian McShane
- Fouquet
- Alan Hale Jr.
- Porthos
- Lloyd Bridges
- Aramis
- José Ferrer
- Athos
- Olivia de Havilland
- Queen Mother Anne
- Helmut Dantine
- Spanish Ambassador
- Rex Harrison
- Colbert
- Román Ariznavarreta
- (as Roman Ariznavarreta)
- Bernard Bresslaw
- Bernard
- Victor Couzyn
- (as Victor Couzin)
- Fritz von Friedl
- (as Fritz V. Friedl)
- Fritz Goblirsch
- Valet
- Billy Horrigan
- (as Bill Horrigan)
- Michael Janisch
- Captain of Prison Guard
- Cissy Kraner
- Housekeeper Marianne
- Elisabeth Neumann-Viertel
- Mother Superior
- Albert Rueprecht
- Captain
- Heinz Winter
- Cardinal
- Stanley E. Foster
- Guard in Pursuit
- Patrick Pinney
- Captain of the Guards
- Otto Retzer
- Prison Guard