Leslie Caron
Gilberte "Gigi"
Maurice Chevalier
Honoré Lachaille
Louis Jourdan
Gaston Lachaille
Hermione Gingold
Madame Alvarez ("Mamita")
Eva Gabor
Liane d'Exelmans
Jacques Bergerac
Sandomir
Isabel Jeans
Aunt Alicia
John Abbott
Manuel
Corinne Marchand
Young Lady with White Sunshade
Marie-Hélène Arnaud
Girl at Maxim's
Anne-Marie Mersen
Maxim Girl
Jack Ary
Waiter at "Palais de Glace" (uncredited)
Daniel Aubé
A boy at Jardins des Tuileries (uncredited)
Richard Bean
Harlequin (uncredited)
Cecil Beaton
Gentleman in Park (uncredited)
Jacques Bertrand
Maitre d'Hotel Maxim's (uncredited)
Paul Cristo
Restaurant Patron (uncredited)
Hubert de Lapparent
Gaston's Private Secretary (uncredited)
Cilly Feindt
Girl on Horseback at Pré Catelan (uncredited)
Edwin Jerome
Charles - Alicia's Butler (uncredited)
Maurice Marsac
Prince Berensky (uncredited)
Bernard Musson
Guest at Maxim's (uncredited)
Dorothy Neumann
Designer (uncredited)
Jean Ozenne
Monsieur Lachaille (uncredited)
Maruja Plose
Mannequin (uncredited)
Roger Saget
Pierre (uncredited)
Pat Sheehan
Blonde (uncredited)
Marilyn Simms
Redhead (uncredited)
Lydia Stevens
Simone (uncredited)
Jack Trevan
Coachman (uncredited)
François Valorbe
Henri - Gaston's Butler (uncredited)
Monique van Vooren
Showgirl (uncredited)
Betty Wand
Gigi (singing voice) (uncredited)
Leroy Winebrenner
Lifeguard (uncredited)