Michael Caine as Mickey King

Mickey Rooney as Preston Gilbert

Lionel Stander as Ben Dinuccio

Lizabeth Scott as Princess Betty Cippola

Nadia Cassini as Liz Adams

Dennis Price as The Englishman

Al Lettieri as Miller

Leopoldo Trieste as Marcovic

Amerigo Tot as Partisan

Robert Sacchi as The Bogeyman

Giulio Donnini as Typing Pool Manager

Luciano Pigozzi as Clairvoyant

Maria Cumani Quasimodo as Office Manageress

Liù Bosisio as Typist #1

Cristina Gaïoni as Typist #2

Janet Ågren as Publisher's Receptionist

Irene Sophie Opperman as Coach Trip Hostess

Iver Gilborn as Coach Tourist

Elaine Olcott as Coach Tourist

Ave Ninchi as Fat Chambermaid

Ermelinda De Felice as Woman in Barbershop

Werner Hasselmann as Tourist in Restaurant

Louise Lambert as Tourist in Restaurant

Victor Mercieca as Prince Frank Cippola

Cettina Borg Olivier as Gilbert's Mother

Joe Zammit Cordina as The Beautiful Thing