Cast & Crew zu Ein Kater macht Theater
| The Cat | Mike Myers | |
| Quinn | Alec Baldwin | |
| Mom | Kelly Preston | |
| Sally | Dakota Fanning | |
| Conrad | Spencer Breslin | |
| Mrs. Kwan | Amy Hill | |
| Mr. Humberfloob | Sean Hayes | |
| Thing One | Danielle Chuchran | |
| Thing One | Taylor Rice | |
| Thing Two | Brittany Oaks | |
| Thing Two | Talia-Lynn Prairie | |
| Thing One/Thing Two (Stimme) | Dan Castellaneta | |
| Narrator (Stimme) | Victor Brandt | |
| Announcer | Daran Norris | |
| Nevins | Bugsy | |
| Nevins (Stimme) | Frank Welker | |
| Kate the Caterer | Clint Howard | |
| Denise | Paige Hurd | |
| Dumb Schweitzer | Steven Anthony Lawrence | |
| Female Club-Goer | Paris Hilton | |
| Secretary | Candace Brown | |
| Jim McFinnigan | Stephen Hibbert | |
| Mr. Vompatatat | Roger Morrisey | |
| Regie |
Bo Welch |
|
| Buch |
Dr. Seuss |
|
| Drehbuch |
Alec Berg David Mandel Jeff Schaffer |
|
| Kamera |
Emmanuel Lubezki |
|
| Schnitt |
Don Zimmerman |
|
| Musik |
David Newman |
|