German stage and film actor. Kemp worked as a piano accompaniest for silent films, and then served as an ambulance driver on the Western Front during the First World War. Post-war he moved into acting on the stage in Düsseldorf and Hamburg. His career really took off when he moved to Berlin in 1929, appearing in the hit stage version of the novel Menschen im Hotel by Vicki Baum. He made his film debut in 1930, shortly after the introduction of sound film. He appeared prolifically in German and Austrian films until his death in 1953.