Gene Kelly (Gene Kelly (uncredited)),
Marilyn Monroe (Amanda Dell),
Milton Berle (Milton Berle (uncredited)),
Bing Crosby (Bing Crosby (uncredited)),
Joan Banks (Secretary (uncredited)),
Oscar Beregi Jr. (Chauffeur (uncredited)),
Joe Besser (Charlie Lamont),
David Burns (Oliver Burton),
John Craven (Comstock (uncredited)),
Michael David (Dave Kerry),
Richard Haydn (Prologue Narrator (uncredited)),
Wilfrid Hyde-White (George Welch),
Madge Kennedy (Miss Manners (uncredited)),
Dennis King Jr. (Abe Miller),
Mara Lynn (Lily Nyles),
Yves Montand (Jean-Marc Clement / Alexander Dumas),
Tony Randall (Alexander Coffman),
Roxanne Tunis (Extra (uncredited)),
Frankie Vaughan (Tony Danton), Ray Foster (Jimmie (uncredited))