Jack Lemmon

Wendell Armbruster, Jr.

Juliet Mills

Pamela Piggott

Clive Revill

Carlo Carlucci

Edward Andrews

J.J. Blodgett

Gianfranco Barra

Bruno

Franco Angrisano

Arnoldo Trotta

Pippo Franco

Mattarazzo

Franco Acampora

Armando Trotta

Giselda Castrini

Anna

Raffaele Mottola

Passport Officer

Lino Coletta

Cipriani

Harry Ray

Dr. Fleischmann

Guidarino Guidi

Maitre D'

Giacomo Rizzo

Barman

Antonino Faà di Bruno

Concierge (as Antonino Faa' Di Bruno)

Yanti Somer

Nurse (as Yanti Sommer)

Janet Ågren

Nurse

María Rosa Sclauzero

Hostess

Melù Valente

Hostess (as Melu' Valente)

Aldo Rendine

Rossi

Bruno Alias

Man at Airport (uncredited)

Sergio Bruni

Singer Sergio Bruni (uncredited)

Pasquale Campagnola

Police commissioner (uncredited)

Nestore Cavaricci

Male Nurse (uncredited)

Enrico Cesaretti

Man at Airport (uncredited)

Armando De Martino

Alberto Trotta (uncredited)

Giorgio Dolfin

Waiter (uncredited)

Andrea Esterhazy

Hotel Guest (uncredited)

Ferruccio Fregonese

Man at Aiport (uncredited)

Ettore Geri

Airplane Passenger (uncredited)

Armando Giovagnoli

Baron Von Schmetterling (uncredited)

Ty Hardin

Helicopter Pilot (uncredited)

Margherita Horowitz

Hotel Guest (uncredited)

Silvio Klein

Man at Airport (uncredited)

Alba Maiolini

Woman at Airport (uncredited)

Giuseppe Marrocco

Commissionaire (uncredited)

Anna Maria Perego

Woman at Hotel (uncredited)

Luigi Scavran

Sommelier (uncredited)

Pupita Lea Scuderoni

Airline Passenger (uncredited)

Maria Tedeschi

Hotel Guest (uncredited)

Giuseppe Terranova

Commissionaire (uncredited)

Bruno Tocci

Police Escort (uncredited)

Sandra Wolff

Airplane Passenger (uncredited)

Lidia Zanussi

Hotel Guest (uncredited)

Gianni Di Segni

Policeman (uncredited)