At the home of Viennese composer Johann Strauss lived Johann Mouse. Whenever the composer played his waltzes, the mouse would dance to the music, unable to control himself. One day, when Strauss was away, the house cat played his master's music. When word got out about a piano-playing cat and a dancing mouse, they were commanded to perform for the emperor.
Unfortunately the movie Johann Mouse is not yet available on HBO Max.
| Visual Effects | Ray Patterson | Animation |
| Art | Robert Gentle | Background Designer |
| Directing | William Hanna | Director |
| Directing | Joseph Barbera | Director |
| Visual Effects | Kenneth Muse | Animation |
| Visual Effects | Ed Barge | Animation |
| Visual Effects | Irven Spence | Animation |
| Production | Fred Quimby | Producer |
| Sound | Scott Bradley | Music Director |
| Sound | Jakob Gimpel | Music Arranger |
