Shaggy / Robin (voice) (archive footage)
Casey Kasem
Freddie (voice) (archive footage)
Frank Welker
Scooby doo (voice) (archive footage)
Don Messick
Batman (voice) (archive footage)
Olan Soule
The Joker (voice) (archive footage)
Larry Storch
The Penguin (voice) (archive footage)
Ted Knight