This man was in so many movies, but I remember him from the A.I. cult flick "Bucket of Blood". He played a none-too-bright busboy in a beatnik joint who killed people then covered them with clay and displayed them as works of art. Suspend the disbelief that the corpses don't bloat or smell, and defy rigor mortis (the corpses retain the pose the busboy put them in). It was fun late-50's horror, AND the first person he killed was played by none other than Burt Convy !!

https://www.nytimes.com/2019/02/01/o...ller-dead.html

This an interview (audio only) that Dick and his wife gave to Gilbert Gottfried: https://www.youtube.com/watch?v=blCxU2vHXdw