Faye Dunaway won a Primetime Emmy Award for Outstanding Guest Actress in a Drama Series for this episode.
Dawn Wells, better known as Mary Ann from Gilligan's Island (1964), has a small, uncredited role as a party guest. She appears at the very beginning of the episode.
This is the second time in the series that an electric blanket was used to keep a dead body warm. The first time was in season 1 episode 4, Suitable for Framing. Another similarity with these 2 episodes is that the accomplice stays at the scene to fire a shot just before the body is discovered.
John Finnegan, who plays Barney the restaurant owner, appears in 13 episodes of Columbo as 11 different characters, including as Lt. Duffy, and the Chief of Police.
Colombo's hair is back to being dark brown in this episode; where in all the other recent episodes it is distinctly salt and pepper.