Frank Welker

~ as ~

Scooby-Doo / Fred Jones / Self

Matthew Lillard

~ as ~

Norville 'Shaggy' Rogers / Self - Voice of "Shaggy"

Grey DeLisle

~ as ~

Daphne Blake / Self - Voice of "Daphne"

Kate Micucci

~ as ~

Velma Dinkley / Self - Voice of "Velma"

Janel Parrish

~ as ~

Janel Parrish - Host

Jerry Beck

~ as ~

Self - Animation Historian and Author

David Silverman

~ as ~

Self - Director and Producer, "The Simpsons"

Seth Green

~ as ~

Self - Actor, "Scooby-Doo 2: Monsters Unleashed"

Tony Cervone

~ as ~

Self - Director, "Scoob!" / Showrunner, "Mystery Incorporated"

Tom Sito

~ as ~

Self - Animator, Historian