 | Mason Adams als The Cat in the Hat / Narrator |
 | Bob Holt als The Grinch / Waiter / The Grinch's Mother |
 | Frank Welker als Max / Waiter / Additional voices |
 | Joe Eich als Chef |
| Bill Perez | Director |
| Dennis Venizelos | Background Designer |
| Joe Raposo | Music |
| David H. DePatie | Executive Producer |
| Friz Freleng | Producer |
| Dr. Seuss | Producer |
| Dr. Seuss | Writer |
