Acting

Dr. Johns

professor Amundsen

Enrico Cavallari

Scheffer

Roger

Grant

American Commando Leader

Donovan

Count Richard Marnack

Guide

Marquis Coppafrata (uncredited)

Stefano's father

Jimmy

Anselmi

Caspar Goodwood

Fritz von Merkel

Riccardo Murri

Carlo Salvi (as Giacomo Rossi-Stuart)

Jack Donati

Tricky