Cast (18)
Don MessickAnnouncer / Boo Boo Bear / Scooby-Doo / Mr. Creeply (voice)
Daws ButlerSnagglepuss / Yogi Bear / Quick Draw McGraw / Various (voice)
John StephensonMildew Wolf / Dread Baron / Great Fondoo / Doggie Daddy (voice)
Casey KasemShaggy Rogers (voice)
Scatman CrothersHong Kong Phooey (voice)
Frank WelkerDynomutt / Jabberjaw / Magic Rabbit / Sooey Pig (voice)
Mel BlancBarney Rubble / Captain Caveman / Speed Buggy (voice)
Julie BennettCindy Bear (voice)
Marilyn SchrefflerBrenda Chance / Daisy Mayhem (voice)
Vernee WatsonDee Dee Skyes (voice)
Laurel Page
Heather North(voices)
Alan Reed
Gary Owens
Bob Holt
Joe BesserDoug Young
Julie McWhirter