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

Dee Dee Skyes (voice)

Laurel Page

Heather North

(voices)

Alan Reed

Gary Owens

Bob Holt

Joe Besser

Doug Young

Julie McWhirter

William Hanna

Producer

Joseph Barbera

Producer

John Bruno

Animation