Here’s some great production pics of Leonard with actress Charlene Whitman as guests on the series 87th Precinct. He played a mysterious murderer/con artist Barrow and she was his conflicted girlfriend, Stella, in the episode The Very Hard Sell. (1961) He’s both a jerk and a charmer here. Note: Nimoy doesn’t appear until @ 2/3rds into the episode, but he’s worth every minute.
The star of the show was none other than Robert Lansing as Detective Steve Carella, who would later play Gary Seven in Assignment: Earth. Does the detective get his man? You can see all of The Very Hard Sell here.