Alvin, We Shrunk Ourselves! Is A 1988 Film.
- Mr. Hotpants
- Ross Bagdasarian Jr. as Alvin/Simon
- Janice Karman as Theodore/Brittany/Jeanette/Eleanor
- Don Mesick as Scooby-Doo/Scrappy-Doo
- Casey Kasem as Shaggy Rogers
- Tim Curry as Ben Ravencroft
- La La La Let’s Be Brave - The Chipmunks
- Creature De La Nuit - The Hex Girls
- The Great Unknown - Scooby-Doo
- Night Train - Scooby-Doo and the Chipmunks
- Blue Beyond - The Chipettes
- Creature De La Nuit (Reprise) - The Chipettes
- The Girls of Rock and Roll (End Credits Song) - The Chipmunks and the Chipettes
- Preceded by An Extremely Stinky Movie And Followed By Yogi's Mystery Adventures of the Fearless Vampire Killers.