- Sharon Tate
- Pat
- Vittorio Gassman
- Mario Beretti
- Orson Welles
- Maurice Markau
- Vittorio De Sica
- Carlo De Seta - The Commendatore
- Terry-Thomas
- Albert
- Mylène Demongeot
- Judy
- Tim Brooke-Taylor
- Jackie
- John Steiner
- Stanley Duncan
- Grégoire Aslan
- Psychiatrist
- William Rushton
- Lionel Bennett
- Lionel Jeffries
- Randomhouse
- Ottavia Piccolo
- Stefanella De Seta
- Catana Cayetano
- Véronique
- Claude Berthy
- François
- Marzio Margine
- Pasqualino
- Alfred Thomas
- Mbama
- Antonio Altoviti
- Mr. Greenwood
- Michele Borelli
- Rosy
- Sandro Dori
- Randomhouse (italian version)
- Alfredo Colzi
- Auctioneer
- Corrado Olmi
- Waiter
- Mirella Pamphili
- Theatre Actress
- Yole Marinelli
- Sybil
- Luigi Bonos
- Dicky
- Piero Gerlini
- Sydney
- Edda Albertini
- Lady Teasington
- Mara Carisi
- Wardrobe Mistress
- Franz Colangeli
- Man at Airport
- Andrea Esterhazy
- Older Solicitor
- Tom Felleghy
- (uncredited)
- Marc Fiorini
- (uncredited)
- Fiona Lewis
- 'Angel Antiques' salesperson
- Harold Null
- Barber
- Filippo Perego
- Man at Airport
- Mimmo Poli
- De Seta's Caretaker
- Cardew Robinson
- Car Park Attendant
- Ruggero Rosi
- De Seta's Chauffeur
- Nando Sarlo
- De Seta's Butler
- Lanfranco Spinola
- Italian Traffic Policeman
- Luigi Tasca
- Bellhop
- Karen Valenti
- Girl in Barber Shop
