Casey Kasem. Casey Kasem was 79 in Scooby Doo and The Zombies as 'Shaggy Rogers (voice) (archive footage)'.
Frank Welker. Frank Welker was 65 in Scooby Doo and The Zombies as 'Scooby-Doo / Fred Jones (voice) (archive footage)'.
Mindy Cohn. Mindy Cohn was 45 in Scooby Doo and The Zombies as 'Velma Dinkley (voice) (archive footage)'.
Grey DeLisle. Grey DeLisle was 38 in Scooby Doo and The Zombies as 'Daphne Blake / Dempsey (voice) (archive footage)'.
Mark Hamill. Mark Hamill was 59 in Scooby Doo and The Zombies as 'Emperor Caesar Saladicus (voice) (archive footage)'.
Daran Norris. Daran Norris was 46 in Scooby Doo and The Zombies as 'Ugo DiRinaldi / Shopkeeper / Zombie (voice) (archive footage)'.
Tara Strong. Tara Strong was 38 in Scooby Doo and The Zombies as 'Alexandra Viggi (voice) (archive footage)'.
Nika Futterman. Nika Futterman was 41 in Scooby Doo and The Zombies as 'Rutie Banez (voice) (archive footage)'.
Pat Fraley. Pat Fraley was 62 in Scooby Doo and The Zombies as 'Uncle Karl (voice) (archive footage)'.
Dee Bradley Baker. Dee Bradley Baker was 48 in Scooby Doo and The Zombies as 'Crusty McPeet / Keeper (voice) (archive footage)'.
Kevin McDonald. Kevin McDonald was 50 in Scooby Doo and The Zombies as 'Julian Libris (voice) (archive footage)'.
Ryan Sheckler. Ryan Sheckler was 21 in Scooby Doo and The Zombies as 'Ryan Sheckler (voice) (archive footage)'.
Maurice LaMarche. Maurice LaMarche was 53 in Scooby Doo and The Zombies as 'Additional Voices (voice) (archive footage)'.