Louis Hayward

D'Artagnan

Patricia Medina

Princess Anne / Princess Louise

Alan Hale Jr.

Porthos

Judd Holdren

Aramis

Steve Brodie

Athos

John Sutton

Duke de Valdac

Hal Gerard

Philip of Spain

Lester Matthews

Prime Minister Rochard

John Dehner

Count de Fourrier

Gavin Muir

Marlo Dwyer

Tor Johnson

Renac (uncredited)

Ralph Murphy