- Cornel Wilde
- D'Artagnan Jr.
- Maureen O'Hara
- Claire - Daughter of Athos
- Robert Douglas
- Duc de Lavalle
- Gladys Cooper
- Queen Anne
- June Clayworth
- Comtesse Claudine
- Dan O'Herlihy
- Aramis Jr.
- Alan Hale Jr.
- Porthos Jr.
- Blanche Yurka
- Madame Michom
- Nancy Gates
- Princess Henriette
- Edmund Breon
- Queen's Chamberlain
- Peter Miles
- Young Louis XIV
- George Petrie
- Chalais
- Moroni Olsen
- Porthos
- Eric Alden
- Guardsman
- Fred Aldrich
- Executioner
- Gregg Barton
- Regent's Guardman at Fallen Tree
- Barry Brooks
- Captain of the Guards
- Albert Cavens
- Claire's Fencing Instructor
- Tanis Chandler
- Mimi
- Tristram Coffin
- Regent's Guardman at Fallen Tree
- Ned Davenport
- Regent Guard
- Boyd Davis
- Dr. Fernand
- Julia Dean
- Madame D'Artagnan
- Claude Dunkin
- Pierre
- Art Dupuis
- Servant
- Richard Glynn
- Mistaken King
- Holmes Herbert
- Mallard
- Ed Hinton
- Guadsman
- Fred Kohler Jr.
- Regent Guard
- Lucien Littlefield
- Cpl. Gautier
- George Magrill
- Regent Guard
- Gregory Marshall
- Henrique
- Mickey McCardle
- Queen's Messenger
- Keith McConnell
- Captain of Regent Guards
- John McKee
- Regent Guard
- Patrick O'Moore
- LaValle's Man / Monk (uncredited)
- Dewey Robinson
- Gaston - Torturer with Branding Iron
- Reginald Sheffield
- Cardinal
- Philip Van Zandt
- Jacques - Regent's Guardsman
