Tom inherits $1,000,000 from an eccentric aunt on the condition that he not harm any living thing - even a mouse. And guess which mouse keeps following him around and pointing this out to him?
| Sound | Scott Bradley | Original Music Composer |
| Production | Fred Quimby | Producer |
| Visual Effects | Irven Spence | Animation |
| Visual Effects | Ray Patterson | Animation |
| Visual Effects | Kenneth Muse | Animation |
| Visual Effects | Pete Burness | Animation |
| Directing | William Hanna | Director |
| Directing | Joseph Barbera | Director |
