As Actor/Actress
Perry Mason
Otto Kessler
The Donna Reed Show
Casablanca
Mr. Leuchtag (uncredited)
Cavalcade of America
December Bride
Man with a Camera
Letter to Loretta
Professor
Hallmark Hall of Fame
Professor Roff
General Electric Theater
Professor Harnish
Schlitz Playhouse of Stars
Jonathan Bigby / clock-keeper
G.I. Blues
Owner of Puppet Show
Nace una canción
Professor Träumer
Action in the North Atlantic
Capt. Ziemer (uncredited)
La mansión de Drácula
Siegfried
Geraldine
Professor Berger
Great Guns
Dr. Schickel
The Blue Angel
Dr. Fritz Heine
Cloak and Dagger
The German
Man Hunt
Doctor
Das Testament des Dr. Mabuse
Arbeiter
La mujer del año
Dr. Lubbeck
La viuda alegre
Major Domo
Call Me Madam
Grand Duke Otto
Dillinger
Mr. Otto
Abbott y Costello: ¿Quién mató a quién?
Dr. Anton Marek
The Climax
Carl Baumann
El orgullo de los Yankees
Henry 'Pop' Gehrig
Dance, Girl, Dance
Caesar
Pasiones borrascosas
Professor Berdorff
Yolanda y el ladrón
School Teacher (as Ludwig Stossel)