This was Joan Crawford's last acting credit in TV or film. She was paid $2,500 for her appearance. That amount, after adjusting for inflation, would be equivalent to $14,000 in 2015.
Gary Collins does not appear as Dr. Michael Rhodes in this episode, instead he opens the show as himself with a story introduction and closes the episode with a mini-interview with Joan Crawford.
Rod Serling replaced Gary Collins as host when this episode was later re-edited and included as part of Night Gallery (1969) in syndication.