Gregory Peck

as Monsignor Hugh O'Flaherty

Christopher Plummer

as Col. Herbert Kappler

John Gielgud

as Pope Pius XII

Raf Vallone

as Father Vittorio

Kenneth Colley

as Capt. Hirsch

Walter Gotell

as Gen. Max Helm

Barbara Bouchet

as Minna Kappler

Olga Karlatos

as Francesca Lombardo

Julian Holloway

as Alfred West

Angelo Infanti

as Father Morosini

Michael Byrne

as Reinhard Beck

T. P. McKenna

as Himmler

Vernon Dobtcheff

as Count Langenthal

John Terry

as Lt. Jack Manning

Peter Burton

as Sir D'Arcy Osborne

Fabiana Udenio

as Guila Lombardo

Billy Boyle

as Paddy

Phillip Hatton

as Lt. Harry Barnett

Marne Maitland

as Papal Secretary

Remo Remotti

as Rabbi Leoni

Mark Lewis

Giovanni Crippa

Itaco Nardulli

Cariddi Nardulli

William Berger

Edmund Purdom

Gabriella D'Olive