Jerry and his little French mouse friend are raiding while the king sleeps. They awaken him and he calls for Tom to give him an ultimatum: One more sound from the mice and it's off with Tom's head. The mice hear this and team up to torment Tom.
Unfortunately the movie Royal Cat Nap is not yet available on HBO Max.
| Visual Effects | Carlo Vinci | Animation |
| Visual Effects | Lewis Marshall | Animation |
| Sound | Scott Bradley | Original Music Composer |
| Directing | Joseph Barbera | Director |
| Directing | Richard Bickenbach | Layout |
| Directing | William Hanna | Director |
| Production | William Hanna | Producer |
| Production | Joseph Barbera | Producer |
| Visual Effects | Kenneth Muse | Animation |
| Art | Robert Gentle | Background Designer |
