Sophia Loren as Princess Olympia

Maurice Chevalier as Prince Philip

John Gavin as Charles Foster

Angela Lansbury as Countess Lina

Isabel Jeans as Princess Eugénie

Tullio Carminati as Albert

Milly Vitale as Can-Can Girl

Carlo Hintermann as Prince Ruprecht

Roberto Risso as Aide de camp

Friedrich von Ledebur as Count Sandor

Adrienne Gessner as Amelia

Luigi Cimara as

Waveney Lee as Countess Theresa

Walter Varndal as