A female version of the man in the iron mask. In this version the mask is put on a princess (patricia medina) rather than a prince as in the original book by Alexander Dumas.
| Actor | Role |
|---|---|
 Louis HaywardD'Artagnan | D'Artagnan |
 Patricia MedinaPrincess Anne / Princess Louise | Princess Anne / Princess Louise |
 Alan Hale Jr.Porthos | Porthos |
 Judd HoldrenAramis | Aramis |
 Steve BrodieAthos | Athos |
 John SuttonDuke de Valdac | Duke de Valdac |
| HHal GerardPhilip of Spain | Philip of Spain |
 Lester MatthewsPrime Minister Rochard | Prime Minister Rochard |
 John DehnerCount de Fourrier | Count de Fourrier |
 Gavin MuirNot listed | Not listed |
 Marlo DwyerNot listed | Not listed |
 Tor JohnsonRenac (uncredited) | Renac (uncredited) |