 |
Mel Blanc as Sylvester / Tweety / Mr. Hyde / Two Cats (voice) |
| Directing | Friz Freleng | Director |
| Sound | Treg Brown | Sound Effects Editor |
| Visual Effects | Gerry Chiniquy | Animation |
| Visual Effects | Virgil Ross | Animation |
| Sound | Milt Franklyn | Original Music Composer |
| Visual Effects | Arthur Davis | Animation |
| Editing | Treg Brown | Editor |
