Actor Allusion: In The Boy Who Left Home to Find Out About the Shivers Christopher Lee (at the time, most famous for playing Dracula) play's Dracula's son Vladimer, complete with a scene where he rises from a coffin in a haunted castle.
Edie McClurg, who played one of the mean girls in Carrie, which is often viewed as a horror retelling of Cinderella, plays one of Cinderella's stepsisters.
All-Star Cast: The concept of the show arose from Duvall, during the Popeye shoot, musing on what it would be like if her co-star Robin Williams played the Frog Prince. The very first episode was indeed, "The Tale of the Frog Prince", with Williams as the title character and the witch who placed him under the curse in the first place, and Teri Garr as the princess. From there, every episode has at least a name performer in the lead, and usually a substantial contigent of A and B-list stars in the supporting roles.
What Could Have Been: David Bowie was cast as the title character in "The Pied Piper of Hamelin", but scheduling conflicts led to Eric Idle taking over the part — resulting in an effective Playing Against Type dramatic performance for the comic actor. (Idle previously wrote, directed, and narrated "The Tale of the Frog Prince", one of the lightest episodes of the series; by comparison, "Pied Piper" is one of the darkest.)