Conked on the head by a bowling ball, Fred awakens believing he is a baby. Barney then takes Fred to see Dr. Frankenstone, who has been experimenting with switching personalities in animals.
| Name | Type | Role | |
|---|---|---|---|
| Howard Morris | Guest Star | ||
| Don Messick | Guest Star | ||
| Mel Blanc | Guest Star | ||
| Doug Young | Guest Star | ||
| Allan Melvin | Guest Star | ||
| Joseph Barbera | Director | ||
| William Hanna | Director |