 | Janet Waldo als Miss Switch / Guinivere (voice) |
 | Eric Taslitz als Rupert P. Brown III (voice) |
 | Nancy McKeon als Amelia Matilda Daley (voice) |
 | Hans Conried als Mordo (voice) |
| Alan Dinehart als Hector (voice) |
| Walker Edmiston als Witch's Encyclopedia / Old Salt / Mayor (voice) |
 | June Foray als Bathsheba / Saturna (voice) |
 | Anne Lockhart als Teacher / Barmaid (voice) |
 | Hal Smith als Smirch (voice) |
| Philip Tanzini als Banana / Conrad (voice) |
| Kevin Spears | Sound Effects Editor |
| Charles A. Nichols | Director |
| Peter Grives | Sound Effects Editor |
| Lenore Nelson | Post Production Supervisor |
| Karla Caldwell | Sound Effects Editor |
| Denise O'Hara | Music Editor |
| Joe Ruby | Executive Producer |
| Ron Campbell | Supervising Animation Director |
| Sheldon Stark | Teleplay |
| Paul DeKorte | Music Supervisor |
| Jack Durney | Sound Effects Editor |
| Ric Gonzalez | Production Design |
| Gordon Kent | Supervising Animation Director |
| Ken Spears | Executive Producer |
| Barbara Brooks Wallace | Book |
| Dean Elliott | Original Music Composer |
| James L. Aicholtz | Sound Mixer |
