Don Messick
Announcer/ Boo Boo Bear/ Scooby-Doo/ Mr. Creeply (voice)
Daws Butler
Snagglepuss/ Yogi Bear/ Quick Draw McGraw/ Various (voice)
John Stephenson
Mildew Wolf/ Dread Baron/ Great Fondoo/ Doggie Daddy (voice)
Casey Kasem
Shaggy Rogers (voice)
Scatman Crothers
Hong Kong Phooey (voice)
Frank Welker
Dynomutt/ Jabberjaw/ Magic Rabbit/ Sooey Pig (voice)
Mel Blanc
Barney Rubble/ Captain Caveman/ Speed Buggy (voice)
Julie Bennett
Cindy Bear (voice)
Marilyn Schreffler
Brenda Chance/ Daisy Mayhem(voice)
Vernee Watson-Johnson
Dee Dee Skyes (voice)
Heather North
(voices)
