Actor. Worked as an extra on stage in his youth. From 1918 he played in Germany and started his theater career. In 1928 he maded his debut in the cinema in Germany. After, he went to England and United States. He decided to stay in due to the political situation in Germanym and became active in civil affairs and in leftist politics. His most memorables roles was in the silent film "Pandora's box" (1929), Mitchell Leisen's "Midnight" (1939) and "Confessions of a nazy spy." He taught classes at the American National Academy of Performing Arts in Los Angeles until one week before his death. Lederer said the secret of longevity "is to live a long time."