Karel Hašler was a Czech songwriter, actor, lyricist, film and theatre director, composer, writer, dramatist, screenwriter and cabaretier. He was murdered in the Mauthausen concentration camp.
- Occupation
- songwriter, film director, writer, playwright
- Citizenship
- Austria–Hungary, Czechoslovakia
- Born
- October 31, 1879
- Died
- December 22, 1941