All Cast

Casey Kasem

Casey Kasem

Shaggy Rogers (voice)

Don Messick

Don Messick

Scooby-Doo / Scrappy-Doo (voice)

Rob Paulsen

Rob Paulsen

Shreako / Dispatcher (voice)

Ronnie Schell

Ronnie Schell

Freako / Demonstrator Ghost (voice)

Jerry Houser

Jerry Houser

Meako (voice)

Sorrell Booke

Sorrell Booke

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

Arte Johnson

Arte Johnson

Farquard / Skull Ghost (voice)

William Callaway

William Callaway

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

Victoria Carroll

Victoria Carroll

Sadie Mae Scroggins (voice)

Michael Rye

Michael Rye

Mayor (voice)

Hamilton Camp

Hamilton Camp

Ghostly Laugh (uncredited voice)

June Foray

June Foray

Witch (uncredited voice)