Underground

Jeffrey Lynn

as Kurt Franken

Philip Dorn

as Eric Franken

Kaaren Verne

as Sylvia Helmuth

Ludwig Stössel

as Gustav Muller

Arthur Tovey

as Man at Railroad Station

Mona Maris

as Ms. Gessner

Peter Whitney

as Alex

Martin Kosleck

as Heller

Erwin Kalser

as Dr. Franken

Ilka Grüning

as Frau Franken

Frank Reicher

as Professor Baumer

Egon Brecher

as Herr Director

Hans Schumm

as Heller's Aide

Wolfgang Zilzer

as Hoffman

Roland Varno

as Ernst Demmler

Henry Brandon

as Rolf

Lotte Palfi Andor

as Greta Rolf

Lisa Golm

as Ella

Louis V. Arco

as Otto

Roland Drew

as Gestapo

Louis Adlon

as Karl

Lester Allen

as Krantz

Rudolph Anders

as Official

Edit Angold

as Maxel's Cashier

Walter Bonn

as Lieutenant

Glen Cavender

as Man Giving Sylvia Baggage Claim Ticket

Hans Conried

as Herman

Gretl Dupont

as Sylvia's Landlady

Arno Frey

as Guard

Frederick Giermann

as Radioman

Eddie Graham

as Man in Phone Booth

Ludwig Hardt

as Tobacco Clerk

Ernst Hauessermann

as Rudi

David Hoffman

as Willi

Willy Kaufman

as Tobacco Customer

Rolf Lindau

as Radioman

Carl Ottmar

as Official

Paul Panzer

as Janitor

John Piffle

as Maxel

Otto Reichow

as Gestapo Agent

Henry Rowland

as Paul

Lionel Royce

as Concentration Camp Captain

Norbert Schiller

as Blind News Vendor

Robert R. Stephenson

as Gestapo Agent

Ernö Verebes

as Maxel's Headwaiter

Henry Victor

as Gestapo Agent

Frederick Vogeding

as Announcer Reporting Demise of Illegal Broadcasts

Wilhelm von Brincken

as Captain Bornsdorff

Hans von Morhart

as Gestapo Agent

Crane Whitley

as Gestapo Agent

Hans Wollenberger

as News Vendor