Tom drowns in a lake and sinks to the bottom. There, he finds a mermouse, which he tries to capture and eat.
Unfortunately the movie The Cat and the Mermouse is not yet available on HBO Max.
| Directing | William Hanna | Director |
| Directing | Joseph Barbera | Director |
| Production | Fred Quimby | Producer |
| Sound | Scott Bradley | Original Music Composer |
| Visual Effects | Kenneth Muse | Animation |
| Visual Effects | Ed Barge | Animation |
| Visual Effects | Ray Patterson | Animation |
| Visual Effects | Irven Spence | Animation |
| Visual Effects | Al Grandmain | Animation |
