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Mel Blanc as Speedy Gonzales / Sylvester / Various Mice (voice) |
 |
Stan Freberg as Mice (voice) (uncredited) |
| Directing | Friz Freleng | Director |
| Writing | Warren Foster | Story |
| Sound | Carl W. Stalling | Music Director |
| Visual Effects | Gerry Chiniquy | Animation |
| Visual Effects | Ted Bonnicksen | Animation |
| Visual Effects | Arthur Davis | Animation |
| Art | Irv Wyner | Background Designer |
| Visual Effects | Hawley Pratt | Layout Supervisor |
