In this series that succeeded the original "Scooby-Doo, Where Are You?" franchise, Scooby, Shaggy and the gang continue to find themselves in one spook-fest after another, with a special celebrity guest star appearing in each entertaining episode. Watch as the likes of Don Knotts, Mama Cass Elliott, the Three Stooges, Dick Van Dyke and others lend their voices to these animated, thrills-filled adventures.