Conhecido(a) por:
O Grande Ditador
Tomanian Commandant at Osterlich / Robert O. Davis 8.3
Criminosos não Merecem Prêmio
Mr. Rolfe Bergh - Chaperon 6.7
A Private's Affair
Dr. Leyden 4.7
Decision at Midnight
Uncle 7.5
Sublime Obsessão
Dr. Albert Fuss 6.8
Ser ou Não Ser
Gestapo Sergeant at Desk at Top of Hotel Stairs (uncredited) 7.8
She Demons
Col. Karl Osler 4.8
Stamboul Quest
Karl (as Rudolph Amendt) 5.2
Kill or Be Killed
Gregory Marek 5.9
Sherlock Holmes e a Arma Secreta
Braun (uncredited) 6.4
Under Nevada Skies
Alberti 7.5
Counter-Attack
Stillman 6.4
King Richard and the Crusaders
Austrian Knight (uncredited) 6.4
Rendezvous
Radio Operator (uncredited) 4.9
Target Unknown
Doctor (uncredited) 7.0
Furacão de Emoções
Capt. van Dorck 5.0
Spy Smasher Returns
Col. Von Kahr 8.3
Mr. Dynamite
Frederick the Butler 9.0
The Pigeon That Took Rome
Col. Wilhelm Krafft 5.3
Abutres das Planícies
Colonel Eric Hartwig (as Robert O. Davis) 8.0
We're in the Legion Now
Sgt. Groeber 4.5
Spy Smasher
Col. Von Kohr 6.1
King of the Texas Rangers
His Excellency 7.0
The Secret Code
Rudi Thysson 5.9
Ato de Violência
German (voice) (uncredited) 6.9
Espionage Agent
Paul Strawn (as Robert O. Davis) 6.3
The Fountain
Geof Van Leyden 8.9
Abandonados
Lieutenant 6.9
Nasce uma Estrela
Mr. Ettinger (uncredited) 7.1
Confissões de um Espião Nazista
Captain Straubel 6.1
That Mothers Might Live
Doctor (uncredited) 6.2
Nazi Agent
Cab Driver (uncredited) 6.6
Escape to Paradise
Alexander Komac 5.4
Pack Up Your Troubles
Von Richtman 6.8
Junior Army
Horner - Nazi Saboteur (as Robert O. Davis) 6.3
Jungle Gents
Dr. Goebbel 5.2
Last of the Pagans
Superintendant's Assistant (uncredited) 6.7
Here's to Romance
Violinist 7.0
Tempestades D'Alma
Gestapo Official Hartman 7.3
Levanta-te, Meu Amor
Prussian Officer (uncredited) 6.3
Knute Rockne All American
Elder in Norway (uncredited) 6.2
The Man I Married
Storm Trooper 6.3
Champagne Waltz
Emperor Franz Joseph 10.0
Captain Scarface
Dr. Yeager 4.8
Riders of the Northland
Agent (as Robert O. Davis) 9.0
The Snow Creature
Dr. Louis DuPont 3.0
Frankenstein 1970
Wilhelm Gottfried 5.4
Down in San Diego
Henry Schrode 6.7
Meet the Wildcat
Feral--Henchman 9.0
A Voz da Liberdade
Official 6.6
A Dangerous Game
Dr. Fleming 7.0
Eagle Squadron
German Squad Leader 7.0
The Great Impersonation
Karl Hofmann 6.4
Fantasma do Espaço
Dr. Wyatt 4.5
The Devil with Hitler
Nazi Officer at Hitler's filmed Speech (uncredited) 5.9
Areias Escaldantes
Hoffman 9.0
Fugitivos do Inferno
Kruse 6.1
The Mad Empress
Herzfeld 5.8
Silver Needle in the Sky
Dr. Loran 5.5
Dangerous Millions
Rudolph Busch 5.4
O Homem de Duas Cabeças
Oberkommandant 7.0
Hell in the Heavens
Lt. Schroeder (as Rudolph Amendt) 5.0
Garrison's Gorillas
8.1
77 Sunset Strip
7.2
Alfred Hitchcock Apresenta
Cafe Host 7.8
Saints and Sinners
Otto Masuis 7.0
One Step Beyond
Dr. Heinrick Swansen 5.7
As Aventuras do Super-Homem
Dr. Rudolf Albrecht 6.7
The Rebel
Frank Gottwald 5.1
The Walter Winchell File
7.5
Dangerous Assignment
5.3