Velma Dinkley (voice) (archive footage)
Nicole Jaffe
Norville 'Shaggy' Rogers / Robin (voice) (archive footage)
Casey Kasem
Scooby-Doo / Professor Flakey (voice) (archive footage)
Don Messick
Daphne Blake (voice) (archive footage)
Heather North
Fred Jones (voice) (archive footage)
Frank Welker
Batman (voice) (archive footage)
Olan Soule
The Penguin / Troll (voice) (archive footage)
Ted Knight
Director
William Hanna
Producer
Joseph Barbera
Writer
Joe Ruby
Ken Spears