Cast (8)
Nicole JaffeVelma Dinkley (voice) (archive footage)
Casey KasemNorville 'Shaggy' Rogers / Robin (voice) (archive footage)
Don MessickScooby-Doo / Professor Flakey (voice) (archive footage)
Heather NorthDaphne Blake (voice) (archive footage)
Frank WelkerFred Jones (voice) (archive footage)
Olan SouleBatman (voice) (archive footage)
Larry StorchThe Joker (voice)
Ted KnightThe Penguin / Troll (voice) (archive footage)