Yogi Bear and Boo-Boo discover aliens who plan to conquer Earth.
| Actor | Role |
|---|---|
 Daws ButlerYogi Bear (voice) | Yogi Bear (voice) |
 Don MessickBoo Boo / Ranger Smith (voice) | Boo Boo / Ranger Smith (voice) |
 Julie BennettCindy Bear (voice) | Cindy Bear (voice) |
 Susan BluSnulu (voice) | Snulu (voice) |
 Peter CullenRanger Roubideux (voice) | Ranger Roubideux (voice) |
 Townsend ColemanZor 1 (voice) | Zor 1 (voice) |
 Rob PaulsenZor 2 (voice) | Zor 2 (voice) |
| LLinda HarmonCindy Bear (singing voice) (uncredited) | Cindy Bear (singing voice) (uncredited) |