German actor, prominent in German theatre and film in the 1930s and 1940s. His postwar career was cut short by his sudden death at 39.
Caspar attended the Treitschke-Reform-Realgymnasium in Berlin-Wilmersdorf. In 1932 he took his abitur (school leaving exam), but did not go to university, since he had already decided to be an actor. He took acting lessons at the school ofIlka Grning and Lucie H”flich, along with future stars of German cinema such as Lilli Palmer, Inge Meysel and Brigitte Horney. In the late 1930s Caspar, a handsome young man, appeared regularly in German films and on the stage. He was taken up by the director Saladin Schmitt and became a leading man at his theatre in Bochum, where he performed in plays by Shakespeare and Friedrich Schiller. When he gave his final performance in Richard II in 1939, he received 108 curtain calls.
Under the Nazi regime’s anti-Jewish Nuremberg Laws, Caspar was classed as a Mischling (mixed race) of the second degree. Despite his part-Jewish ancestry, he continued to work as an actor. This was partly because he enjoyed the protection of Schmitt, who as a homosexual was no friend of the Nazi regime. But he also enjoyed the patronage of Propaganda Minister Joseph Goebbels. Goebbels personally vetted cases of part-Jewish performers and allowed a number of popular part Jewish actors to continue working. In 1940 Caspar joined one of the most important German theatres of the time, the Schiller Theatre in Berlin. In 1942 he performed at the prestigious Burgtheater in Vienna. This was regarded as a “rare and special privilege” for a part-Jewish actor in a city where all Jews had been purged from cultural life.
On 20 January 1944 Caspar married a 22-year-old actress Antje Weisgerber. She gave birth to a son and a daughter.
Caspar died suddenly in Berlin on 27 December 1952 of a stroke at the age of 39. His son Frank died on the day of his father’s funeral, aged eight.

Link to Wikipedia biography