| Episode cast overview: |
 | Luis Avalos | - | Roberto / Dr. Doolats / Igor / Pedro |
 | Jim Boyd | - | Andy / J. Arthur Crank / Paul the Gorilla / The Blue Beetle / The Wolfman / Loreli Loverly / Max / Steve Awesome the $6.39 Man |
 | Morgan Freeman | - | Mark / Easy Reader / Mel Mounds / Count Dracula / Mad Scientist / The Cop / Marcello |
 | Judy Graubart | - | Winnie / Jennifer of the Jungle / Julia Grown-Up / The Witch |
 | Skip Hinnant | - | Jay-Jay / Fargo North, Decoder / Frankenstein / Supper Man / Clam / Love of Chair boy |
 | Rita Moreno | - | Carmela / The Director / Pandora the Little Girl / Millie the Helper |
 | Danny Seagren | - | Spider-Man |
 | Hattie Winston | - | Sylvia / Valerie the Librarian |
 | June Angela | - | Julie - Member of the Short Circus |
 | Todd Graff | - | Jesse - Member of the Short Circus |
| Rodney Lewis | - | Charlie - Member of the Short Circus |
| Réjane Magloire | - | Samantha - Member of the Short Circus |
| Janina Mathews | - | Gail - Member of the Short Circus |
 | Mel Brooks | - | Blond-Haired Cartoon Man (voice) |
 | Zero Mostel | - | Spell Binder (voice) |
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