Dr Millenium perfects his Millenium Machine, which allows him to bring prehistoric creatures back to life, and use them for his nefarious ends.
| Name | Type | Role | |
|---|---|---|---|
| Phil Hahn | Writer | ||
| Jack Hanrahan | Writer | ||
| Neal Barbera | Writer | ||
| Don Messick | Guest Star | ||
| John Stephenson | Guest Star | ||
| William Hanna | Director | ||
| Joseph Barbera | Director |