The Fonz and the Happy Days Gang/Trivia
- Hey, It's That Voice!: Henry Winkler, Ron Howard, and Donny Most simply reprised their roles from Happy Days. Mr. Cool the dog was by Frank Welker (who mostly does animal noises and other vocal effects and only voices one human character -- Fred Jones).
- Cupcake was voiced by Didi Conn (a.k.a Raggedy Ann, Frenchy/Frenchie, Denise Stevens Downey, and Stacy, the ticket lady).
- What Could Have Been: Had Hanna-Barbera been able to get the rights from the BBC, this series wouldn't have been based on Happy Days. It would have been an Animated Adaptation of Doctor Who.