David Warner and Twiggy both appeared in John Carpenter's Body Bags a year after this episode aired. Although in different segments. David Warner in the segment "Hair" and Twiggy in the segment "The Eye." Body Bags was originally going to be a show similar to Tales From the Crypt, but airing on Showtime. Showtime pulled the plug, so they made an anthology movie instead.
When Nora is telling Dr Goetz about the previous psychologists who have tried to help her and her daughter, the second name she mentions is "Dr Kassir." John Kassir is the distinctive voice - and maniacal laugh - of the Crypt Keeper in this series.
When Dr. Goetz & Bonnie enter Felicity's room, there is a television on but has constant static just like in the movie Poltergeist (1982) when Heather O'Rourke's character Carol Anne tells her parents 'They're here.' after getting out of bed and watching the ghost escape through and then sucked back in a static TV. Zelda Rubinstein who plays Nora in this episode also played the role of Tangina in Poltergeist.
Dr Goetz recommends that Nora read his book, "The Art of Ignoring Your Child." She informs him that she already has it, and shows him her collection of psychology books. A closeup of the shelf reveals the Goetz volume, plus several other books that apparently were made up by the prop department, except for two real books: the scholarly journal "Psychological Monographs" for 1954 (multiple issues from that year bound together as you would find in a library, complete with a real library call-number on the spine); and a copy of the novel "Ruth Fielding Down in Dixie" by Alice B. Emerson (New York: Cupples & Leon, 1916), a strange choice indeed for a shelf otherwise holding mostly self-help books on child psychology.
At the time she appeared in this episode, Zelda Rubinstein was fielding incoming calls as the police station receptionist on "Picket Fences", much like how Dr. Getz answered calls from his listeners on the radio in this episode.