Casey Kasem

Character: Shaggy Rogers (voice)

Don Messick

Character: Scooby-Doo (voice)

Frank Welker

Character: Fred Jones (voice)

Heather North

Character: Daphne Blake (voice)

Patricia Stevens

Character: Velma Dinkley (voice)

Ginny McSwain

Character: Kerry / Girl Fan / Executive Secretary (voice)

Marilyn Schreffler

Character: Cherie / Sis / Receptionist (voice)

Joan Gerber

Character: Lavonne / Second Woman / Waitress (voice)

Rip Taylor

Character: C.J. (voice)

Michael Bell

Character: Jesse Rotten / V.P. Jackie Carlson (voice)

Stan Jones

Character: Director / First V.P. / Terrier (voice)

Pat Fraley

Character: Brother / Guard / Announcer (voice)

Edie Lehmann Boddicker

Character: Singer (voice)

Paul DeKorte

Character: Singer (voice)

Michael Redman

Character: Singer (voice)

Debbie Hall

Character: Singer (voice)

Robert Tebow

Character: Singer (voice)