All Cast
Frank Welker
Fred Jones (voice) (archive footage)
Casey Kasem
Shaggy (voice) (archive footage)
Don Messick
Scooby-Doo (voice) (archive footage)
B.J. Ward
Velma (voice) (archive footage)
Heather North
Daphne (voice) (archive footage)
Marla Frumkin
Velma (voice) (archive footage)
