Scooby-Doo / Scrappy-Doo (voice)

Don Messick

Acting

Shaggy (voice)

Casey Kasem

Acting

Sheriff Rufus Buzby / T.J. Buzby (voice)

Sorrell Booke

Acting

Billy Bob Scroggins / Beaureguard / Horseman / Ape (voice)

William Callaway

Acting

Sadie Mae Scroggins (voice)

Victoria Carroll

Acting

Meako (voice)

Jerry Houser

Acting

Farquard / Skull Ghost (voice)

Arte Johnson

Acting

Shreako / Dispatcher (voice)

Rob Paulsen

Acting

Mayor (voice)

Michael Rye

Acting

Freako / Demonstrator Ghost (voice)

Ronnie Schell

Acting

Ghostly Laugh (uncredited) (voice)

Hamilton Camp

Acting

Witch (uncredited) (voice)

June Foray

Acting