Lana Turner (Diane de Poitiers)
Pedro Armendáriz (Francis I)
Roger Moore (Prince Henri)
Marisa Pavan (Catherine de Medici)
Cedric Hardwicke (Ruggieri)
Percy Helton (Court Jester)
Fay Morley
James Drury (Lieutenant)
Robert Dix (Young Officer)
Barbara Darrow
Ann Staunton
Stuart Whitman (Henri's Squire)
Ronald Green (The Dauphin)
Sean McClory (Count Montgomery)
Geoffrey Toone (Duke of Savoy)
Michael Ansara (Count Ridolfi)
Paul Cavanagh (Lord Bonnivet)
Melville Cooper (Court Physician)
Ian Wolfe (Lord Tremouille)
Basil Ruysdael (Chamberlain)
Christopher Dark (Gian-Carlo)
Marc Cavell (Piero)
Gene Reynolds (Montecuculli)
John O'Malley (Marechal de Chabannes)
Peter Gray (Sardini)
Mickey Maga (Charles)
Ronald Anton (Francis)
Taina Elg (Alys)
Torin Thatcher (Count de Breze)
John Lupton (Regnault)
Henry Daniell (Gondi)