1930s[]
- 1931 – M as Hans Beckert
- 1935 – Mad Love as Dr. Gogol
1940s[]
- 1942 – Invisible Agent as Baron Ikito
- 1942 – The Boogie Man Will Get You as Dr. Lorentz
- 1944 – Arsenic and Old Lace as Dr. Herman Einstein
- 1946 – The Beast With Five Fingers as Hilary Cummins
1960s[]
- 1962 – Tales of Terror as Montresor Herringbone
- 1963 – The Raven as Dr. Adolphus Bedlo
- 1964 – The Comedy of Terrors as Felix Gillie