Dirk Bogarde
Max
Charlotte Rampling
Lucia
Philippe Leroy
Klaus
Gabriele Ferzetti
Hans
Giuseppe Addobbati
Stumm
Isa Miranda
Countess Stein
Nino Bignamini
Adolph
Marino Masé
Atherton
Amadeo Amodio
Bert
Piero Vida
Day Porter
Geoffrey Copleston
Kurt
Manfred Freyberger
Dobson
Nora Ricci
The Neighbor
Piero Mazzinghi
Concierge
Luigi Antonio Guerra
Bit role (uncredited)
Ugo Cardea
Mario
Hilda Gunther
Greta
Kai-Siegfried Seefeld
Jacob
Carlo Mangano
Porter (uncredited)
