Tom, famous baritone Signor Thomasino Catti-Cazzaza, enthralls a concert audience with his rendition of "Largo al factotum", from Rossini's "Il Barbiere di Siviglia", while Jerry strives for sleep under the stage.
| Directing | Chuck Jones | Director |
| Directing | Maurice Noble | Co-Director |
| Writing | Michael Maltese | Story |
| Writing | Chuck Jones | Story |
| Production | Chuck Jones | Producer |
| Visual Effects | Tom Ray | Animation |
| Visual Effects | Richard Thompson | Animation |
| Visual Effects | Ben Washam | Animation |
| Visual Effects | Ken Harris | Animation |
| Visual Effects | Don Towsley | Animation |
| Art | Philip DeGuard | Background Designer |
| Production | Les Goldman | Executive In Charge Of Production |
| Sound | Eugene Poddany | Original Music Composer |
