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The actor W. Arnoldi only took part in few movies in the silent movie era.
He impersonated his first role in Richard Oswald's "Die Arche/Die letzten Menschen" (19) at the side of Eugen Klöpfer, Max Gülstorff, Guido Herzfeld, Eva Speyer and Georg H. Schnell.
It followed the productions "Unheimliche Geschichten" (19) directed by Richard Oswald with the stars Conrad Veidt, Reinhold Schünzel, Anita Berber, Bernhard Götzke, Paul Morgan, Georg John and Käte Oswald and Joe May's "Die Herrin der Welt, 1. Teil" (19) with Mia May, Paul Hansen, Paul Morgan, Hermann Picha, Wilhelm Diegelmann, Victor Janson, Hedwig Bleibtreu and Bruno Decarli.
His last cinematical work came into being for "Memoiren eines Kammerdieners, 1. Teil: Martin, der Findling" (21) playing the role of Mr. Pumolard with Evi Eva, Ernst Hofmann, Tatjana Irrah, Max Wogritsch and Fred Immler.