Izvirnik "Scooby-Doo, kje si!" Serija (1969-1970):
* Scooby-Doo: Don Messick
* Shaggy Rogers: Casey Kasem
* Fred Jones: Frank Welker
* Daphne Blake: Stefanianna Christopherson (1. sezona), Heather North (2. sezona)
* Velma Dinkley: Nicole Jaffe
Poznejše serije in filmi:
* Scooby-Doo (film iz 2002):
* Scooby-Doo: Neil Fanning
* Shaggy Rogers: Matthew Lillard
* Fred Jones: Freddie Prinze Jr.
* Daphne Blake: Sarah Michelle Gellar
* Velma Dinkley: Linda Cardellini
* Scooby-Doo 2:Monsters Unleashed (film iz 2004):
* Scooby-Doo: Neil Fanning
* Shaggy Rogers: Matthew Lillard
* Fred Jones: Freddie Prinze Jr.
* Daphne Blake: Sarah Michelle Gellar
* Velma Dinkley: Linda Cardellini
* Scooby-Doo! Mystery Incorporated (2010-2013):
* Scooby-Doo: Frank Welker
* Shaggy Rogers: Matthew Lillard
* Fred Jones: Adam Pally
* Daphne Blake: Grey DeLisle
* Velma Dinkley: Mindy Cohn
* Scooby-Doo in Ugani kdo? (2019-danes):
* Scooby-Doo: Frank Welker
* Shaggy Rogers: Matthew Lillard
* Fred Jones: Frank Welker
* Daphne Blake: Grey DeLisle
* Velma Dinkley: Mindy Cohn
Opomba: To je le izbor glavnih igralcev in igralk. Mnogi drugi nadarjeni igralci in igralke so v preteklih letih posodili glasove likom v različnih projektih Scooby-Doo.