Johnny has to track down a gorilla that escaped from the zoo.
| Name | Type | Role | |
|---|---|---|---|
| Maurice LaMarche | Guest Star | ||
| Jeff Bennett | Guest Star | ||
| Maurice LaMarche | Guest Star | ||
| Roger Rose | Guest Star | ||
| April Winchell | Guest Star | ||
| Mark Hamill | Guest Star | ||
| Pat Musick | Guest Star | ||
| B.J. Ward | Guest Star | ||
| Michael McKean | Guest Star | ||
| Soleil Moon Frye | Guest Star | ||
| Mae Whitman | Guest Star | ||
| John Kassir | Guest Star | ||
| Candi Milo | Guest Star | ||
| David L. Lander | Guest Star | ||
| Van Partible | Director |