The Mystery Gang goes to Hawaii for the Big Kahuna of Hanahuna Surfing Contest. However, the gang and the locals find the island invaded by the vengeful Wiki Tiki spirit and his demons.
as Shaggy Rogers (voice)
as Scooby-Doo / Fred Jones / Wiki-Tiki / Interviewer (voice)
as Velma Dinkley (voice)
as Daphne Blake / Auntie Mahina / Local Woman #2 (voice)
as Little Jim (voice)
as Snookie / Local Woman #1 (voice)
as Mayor Molly Quinn (voice)
as Manu Tuiama / Mainland Surfer (voice)
as Jared Moon (voice)
as Special Musical Guest (voice)
as Special Musical Guest #2 (voice)
as Special Musical Guest #1 (voice)
as Tiny Tiki / Surfer on Bike / California Surfer Dude / Local Guy #1 / Wild Pig / Gecko / Flame Thrower (voice)
as Ruben Laluna / California Surfer / Tiny Tiki (voice)
