After a young girl gets locked in after hours at a Los Angeles public library, several book characters come to life and try to help her find a way out.
| Actor | Role |
|---|---|
 Quinn CummingsP.J. | P.J. |
 Ruth BuzziMrs. Page (voice) | Mrs. Page (voice) |
 Penelope SudrowMyra (voice) | Myra (voice) |
 George GobelGhost (voice) | Ghost (voice) |
 Tammy GrimesPrincess (voice) | Princess (voice) |
 Arte JohnsonKing / Dragon / Lord Garp / Prince (voice) | King / Dragon / Lord Garp / Prince (voice) |
 Hans ConriedProfessor Mickimecki (voice) | Professor Mickimecki (voice) |
 Sparky MarcusMelvin Spitznagle (voice) | Melvin Spitznagle (voice) |
 June ForayMrs. Spitznagle (voice) | Mrs. Spitznagle (voice) |
 Jack AngelMr. Spitznagle (voice) | Mr. Spitznagle (voice) |