Aloha Scooby-Doo!

Casey Kasem
Shaggy Rogers (voice)

Frank Welker
Scooby-Doo / Fred Jones / Wiki-Tiki / Interviewer (voice)

Mindy Cohn
Velma Dinkley (voice)

Grey DeLisle
Daphne Blake / Auntie Mahina / Local Woman #2 (voice)

Ray Bumatai
Little Jim (voice)

Tia Carrere
Snookie / Local Woman #1 (voice)

Teri Garr
Mayor Molly Quinn (voice)

Mario López
Manu Tuiama / Mainland Surfer (voice)

Adam West
Jared Moon (voice)

Don Ho
Special Musical Guest #1 (voice)

Dick Dale
Special Musical Guest #2 (voice)

Dee Bradley Baker
Tiny Tiki / Surfer on Bike / California Surfer Dude / Local Guy #1 / Wild Pig / ...

Tom Kenny
Ruben Laluna / California Surfer / Tiny Tiki (voice)