David Hurst

as Sol Goldstein

as Fritz Benner

as Strasser

as Jacques Dumaine

as Dr. Fred Webber

as Stovich

as Schabel

as Schnable

as Col. Dunkhepf

as Rudolph Reisenweber

as Dr. Jan Vanovech

as Pirot

as Vladek

as Victor Grigov

as Matthew Brecker

as The Baron

as Ambassador Hodin

as Alex Keeler

as Heinrich Kleist

as Dr. Leland Mayes Elmont

as Gustave

as Baron

as Mr. Stryver

as Perelli

as The Colonel

as M. Victor

as Dr. Hermann Schneider

as Professor Dofee

as Signor Mantalini

as Paddy Maclure

as Beckstein

as Lex

as Deutsch

as Minelli

as Mugsy

as Blumel

as Petrovini

as Poppi

as Franco

as Wolfgang Wilhelm Winkel II (Swiss waiter)

as Arthur Crook