Audrey HepburnMarie Vetsera Laurinda BarrettMarie's cousin Francis ComptonPrater waiter Isobel ElsomBaroness Vetsera Judith EvelynCountess Larische Mel FerrerCrown Prince Rudolph Lorne GreeneEmperor's aide Nancy MarchandCrown Princess Stéphanie Raymond MasseyThe Prime Minister David OpatoshuPolice officer Nehemiah PersoffPolice officer Basil SydneyEmperor Franz Joseph Monique van VoorenMarinka Diana WynyardEmpress Elisabeth Anatole LitvakDirector / Producer 
