Take a trip with Barney, BJ, Baby Bop and their new friends as they discover anything can happen in The Land of Make Believe! When a puzzled young princess from a storybook magically appears, the group begins a quest to help her find her way home. On the journey, they swim with dolphins, see a beautiful mermaid and even meet a magician! But will the princess ever find her kingdom?
| Actor | Role |
|---|---|
| DDean WendtBarney (voice) | Barney (voice) |
 Carey StinsonBarney | Barney |
 Julie JohnsonBaby Bop (voice) | Baby Bop (voice) |
| JJeff AyersBaby Bop | Baby Bop |
 Montana TuckerSerena the Mermaid | Serena the Mermaid |
| PPatty WirtzBJ (voice) | BJ (voice) |
| AAlexandrea HairstonPrincess Zulica (Zulie) | Princess Zulica (Zulie) |
| KKyle NelsonBJ | BJ |
| DDylan CrowleyAlex | Alex |
 Carina ContiMegan | Megan |
| JJennifer SkidmoreLily The Librarian | Lily The Librarian |
| RRobert Sky McDougallMaynard The Magician | Maynard The Magician |
| NNicholas J. LeinbachHorrible Harry The Giant | Horrible Harry The Giant |
| DDesi RomeroKing | King |
 Nicola LamboQueen | Queen |
| OOlgia CampbellMatilda The Hun | Matilda The Hun |
| TTonya ThompsonMrs. Wilson | Mrs. Wilson |