In a spoof of 1972's The New Scooby-Doo Movies, Scooby-Doo and the Mystery Inc. gang pick up a hitchiking Gary Coleman. Soon after, the Mystery Machine proceeds to break down (multiple times) leaving them stranded at a haunted castle owned by David Cross.
| Actor | Role |
|---|---|
 B.J. WardVelma Dinkley (voice) | Velma Dinkley (voice) |
 Grey DeLisleDaphne Blake (voice) | Daphne Blake (voice) |
 David CrossDavid Cross (voice) | David Cross (voice) |
 Frank WelkerFred Jones / Jabberjaw (voice) | Fred Jones / Jabberjaw (voice) |
 Mark HamillMr. Shifty / Mark Hamill (voice) | Mr. Shifty / Mark Hamill (voice) |
 Scott InnesScooby-Doo / Shaggy Rogers (voice) | Scooby-Doo / Shaggy Rogers (voice) |
 Gary ColemanGary Coleman (voice) | Gary Coleman (voice) |