Frank Welker
Scooby-Doo / Fred (voice)
Casey Kasem
Shaggy (voice)
Heather North
Daphne (voice)
Nicole Jaffe
Velma (voice)
Jane Wiedlin
Dusk (voice)
Jennifer Hale
Thorn / Queen (voice)
Jeff Bennett
Jasper Ridgeway / Jack / Lifeguard #1 (voice)
Kimberly Brooks
Luna (voice)
Tom Kenny
Harry / Stormy Weathers / Barry / Lightning Strikes / Lifeguard #2 (voice)
Phil LaMarr
Daniel Illiwara / King (voice)
Michael Neill
Russell / Dark Skull / Matt Marvelous (voice)
Kevin Michael Richardson
Malcolm Illiwara / Yowie Yahoo / Crocodile (voice)