 His fellow stage actors included his future wife, , Marlene Dietrich, Dora Gerson and Max Schreck (the vampire in "Nosferatu)".Later he began working in silent and sound films; he landed supporting roles in "Assassination", "Queen Louise" and "Land Without Women".In 1930, along with Leni Riefenstahl, he appeared in "Storm over Mont Blanc", and in 1932 he played the lead in Riefenstahl's "The Blue Light".