 Casey KasemShaggy Rogers (voice) | Shaggy Rogers (voice) |
 Frank WelkerScooby-Doo / Fred Jones / Wiki-Tiki / Interviewer (voice) | Scooby-Doo / Fred Jones / Wiki-Tiki / Interviewer (voice) |
 Mindy CohnVelma Dinkley (voice) | Velma Dinkley (voice) |
 Grey DeLisleDaphne Blake / Auntie Mahina / Local Woman #2 (voice) | Daphne Blake / Auntie Mahina / Local Woman #2 (voice) |
 Ray BumataiLittle Jim (voice) | Little Jim (voice) |
 Tia CarrereSnookie / Local Woman #1 (voice) | Snookie / Local Woman #1 (voice) |
 Teri GarrMayor Molly Quinn (voice) | Mayor Molly Quinn (voice) |
 Mario LópezManu Tuiama / Mainland Surfer (voice) | Manu Tuiama / Mainland Surfer (voice) |
 Adam WestJared Moon (voice) | Jared Moon (voice) |
 Don HoSpecial Musical Guest (voice) | Special Musical Guest (voice) |
 Dick DaleSpecial Musical Guest #2 (voice) | Special Musical Guest #2 (voice) |
| Don HoSpecial Musical Guest #1 (voice) | Special Musical Guest #1 (voice) |
 Dee Bradley BakerTiny Tiki / Surfer on Bike / California Surfer Dude / Local Guy #1 / Wild Pig / Gecko / Flame Thrower (voice) | Tiny Tiki / Surfer on Bike / California Surfer Dude / Local Guy #1 / Wild Pig / Gecko / Flame Thrower (voice) |
 Tom KennyRuben Laluna / California Surfer / Tiny Tiki (voice) | Ruben Laluna / California Surfer / Tiny Tiki (voice) |
