When Snoopy receives a letter from his original owner Lila, he goes to visit her in the hospital while Charlie Brown and the gang are on the lookout for him. Suddenly, Snoopy feels that he must go live with Lila, but must say goodbye to all his friends. In his adventure to the hospital, he encounters numerous "No Dogs Allowed" signs, an annoying little girl who desires to keep him, and more!
| Actor | Role |
|---|---|
| CChad WebberCharlie Brown (voice) | Charlie Brown (voice) |
 Bill MelendezSnoopy / Woodstock (voice) | Snoopy / Woodstock (voice) |
 Robin KohnLucy Van Pelt (voice) | Lucy Van Pelt (voice) |
 Stephen SheaLinus Van Pelt (voice) | Linus Van Pelt (voice) |
| DDavid CareySchroeder (voice) | Schroeder (voice) |
 Hilary Momberger-PowersSally Brown (voice) | Sally Brown (voice) |
| JJohanna BaerLila (voice) | Lila (voice) |
| LLinda ErcoliClara (voice) | Clara (voice) |
| LLynda MendelsonFrieda (voice) | Frieda (voice) |
 Christopher DeFariaPeppermint Patty (voice) | Peppermint Patty (voice) |
 Thurl Ravenscroft"No Dogs Allowed" (voice) (uncredited) | "No Dogs Allowed" (voice) (uncredited) |
| SShelby FlintVocalist (voice) | Vocalist (voice) |
| GGuy PohlmanVocalist (voice) | Vocalist (voice) |
| RRay PohlmanVocalist (voice) | Vocalist (voice) |
| DDon RalkeVocalist (voice) | Vocalist (voice) |