Grace
Prince Rainier
Francis Tucker
Maria Callas
Madge
Rupert Allan
Princess Antoinette
Jean-Charles Rey
Aristotle Onassis
Count Fernando D'Aillieres (as Sir Derek Jacobi)
Charles de Gaulle
Countess Baciochi
Phyllis
Mr. Delavenne
Emile Pelletier
Hitchcock (as Roger Ashton Griffiths)
Denard
McNamara
Emile Cornet
Mrs. Leclerk (Choreographer) (as Catherine Schaub Abkarian)
Miss Paget (French Teacher)
Master of Ceremonies
Detective Madge
Princess Ghislaine
Palace Security Officer
Rainier Minister
Yvonne Vendroux
Red Cross Lady
Young Princess Caroline
Young Prince Albert
Young Christian
Poem Little Girl 1
Poem Little Girl 2
Policeman at the Market (as Fabien Baiardi)
Italian Reporter Paris
'Orphenage' Reporter (as Samuel Brafman)
TV Show Man
Journalist
Hollywood Producer
Hollywood Director
Chamber Maid
Grace's Dresser (as Pascaline Crevecoeur)
TV Show Woman
Messenger Valet
Border Custom Officer
Yacht Reporter
'Orphenage' Reporter
French State Security Police Force Lieutenant
The Guest
British Reporter Paris
Italian Typist
Woman at the Market (as Ariane Seguillon)
Evan Hunter (uncredited)
David Niven (uncredited)
Guest (uncredited)
Esther (Studio) (uncredited)
(uncredited)
French Fan (uncredited)
Guest Vip on Onassis's boat. (uncredited)