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