Edward Mercer

Richard Todd

Adriana Medova

Eva Bartok

Renzo Uccello

John Gregson

Chief of Police Spadoni

George Coulouris

Rosa Melitus

Margot Grahame

Count Boria

Walter Rilia

Count Boria

Walter Rilla

Lieutenant Longo

John Bailey

Bernardo

Sidney James

Gufo

Martin Boddey

Moretto

Michael Balfour

Boldesca

Sydney Tafler

Grespi

Miles Malleson

Gostini

Eric Pohlmann

Minelli

David Hurst

Luigi

Raymond Young

Tio

Ferdy Mayne

Renata

Jill Clifford

Woman Detective

Eileen Way

Ninetta

Janice Kane

Nerva

Toni Lucarda

Ferdinand "Ferdy" Mayne

Mayor of Mirave

Meier Tzelniker

Woman Next to the Factory Tour Guide (Uncredited)

Betty E. Box

Marianne Stone

Bystander (Uncredited)

Victor Harrington