Diretor/a
Fergus McDonell
DIRETOR/A
Elenco (na ordem dos créditos)
Guy Rolfe
John Morell
Kathleen Byron
Signora Anne Bondini
Kathleen Ryan
Catherine Morell
Jeremy Spenser
Guido Ferugia
Henry Oscar
Signor Mario Bondini
Rosalie Crutchley
Carlotta Ferugia
John Slater
Dr. Lorenzo
James Robertson Justice
Sir Arthur Harold
Ferdy Mayne
Carlo Ferugia
Robert Rietty
Giuseppe
Robin Dowell
Nick Morell
Hugo Schuster
Dr. Freihaus
Michael Balfour
Lucio
Christopher Lee
Newsman
David McCallum Sr.
Leader of orchestra, Royal Albert Hall
Dora Hyde
Leader of orchestra, Naples
Michael Croudson
Nick's Friend
Don Liddel
Benjamino
Ben Williams
Car Driver
Alex Fields
Doorkeeper
Penny Dane
Maid
Leonard Trolley
Waiter
Aileen Lewis
Concert-goer in box seat(uncredited)
Barry MacGregor
(uncredited)
William Simons
Boy(uncredited)