Mayerling

Audrey Hepburn

Countess Marie Vetsera

Mel Ferrer

Crown Prince Rudolph

Raymond Massey

The Prime Minister

Basil Sydney

The Emperor Franz Joseph

Diana Wynyard

The Empress Elizabeth

Judith Evelyn

Countess Larische

Isobel Elsom

Baroness Vetsera

Nehemiah Persoff

Police Officer

Lorne Greene

Emperor's Aide

David Opatoshu

Police Officer

Ian Wolfe

Loschek

Monique van Vooren

Marinka