1920

The Cabinet of Dr. Caligari

Alan

1943

Casablanca

German Officer with Yvonne (uncredited)

1951

The Gentleman in Room 6

Guest

1943

Hangmen Also Die!

Reinhard Heydrich

1935

Storm Over the Andes

Oberto (as Hans Von Twardowski)

1942

Once Upon a Honeymoon

German Officer (uncredited)

1922

Phantom

Hugo Lubota

1942

The Dawn Express

Capt. Gemmler

1929

Peter, der Matrose

1928

Die Hölle der Jungfrauen

1943

Hitler's Madman

1929

I Kiss Your Hand, Madame

Waiter

1920

Genuine: The Tragedy of a Vampire

Florian

1923

I.N.R.I. – A Film of Humanity

Johannes

1944

Resisting Enemy Interrogation

Herr Mahler - German Red Cross Representative

1934

The Scarlet Empress

1921

The House on the Moon

1920

The Night of Queen Isabeau

Page

1932

6 Hours to Live

Flosky

1939

Espionage Agent

Dr. Helm

1932

Scandal for Sale

Affner, the pilot

1933

The Devil's in Love

Andre's Defense Counsel

1933

Adorable

Prince of Pontevedro

1939

Confessions of a Nazi Spy

Helldorf

1935

The Crusades

Nicholas, Count of Hungary

1943

First Comes Courage

Nazi Captain (uncredited)

1928

Sex in Chains

Alfred

1930

Ludwig II, King of Bavaria

Otto von Wittelsbach (as H.H. von Twardowsky)

1920

From Morn to Midnight

Sohn der Dame

1927

Der falsche Prinz

Wolf, sein Freund

1930

The Singing City

Willi von Wellheim - Claires Verehrer

1931

The Holy Flames

Robert Taylor

1939

Hitler: Beast of Berlin

Albert Stalhelm - Storm Trooper

1927

The Weavers

Gottfried Hilse

1933

Private Jones

Von Bergen (uncredited)

1943

Background to Danger

German Officer

1943

Margin for Error

Fritz - Butler

1943

Edge of Darkness

German Co-Pilot (uncredited)

1919

Eerie Tales

Restaurant Waiter

1922

Marizza

1924

The Enchantress

1944

Passage to Marseille

Film Emigration from Nazi Germany

Self (archive footage)