Scooby-Doo, Where Are You Now!

Self - Director and Producer, "The Simpsons"

Batman - Concerned Citizen (voice)

Self - Animation Historian and Author

Self - Singer, Songwriter, Accordionist

Arlo Davidsonman - Team Scooby

Additional Voices (voice)

Shaggy Rogers (voice) (archive footage)

Self - Animator, Historian

Self - Hanna-Barbera Co-Founder (archive footage)

Bram Penobscot - Scooby's Vocal Coach

Olivia Liang - Shaggy's Martial Arts Trainer

Costume Designer Carter

Lazlo the Mechanic

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

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

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

Producer Bryn

Scooby-Doo / Fred Jones / Self

Daphne Blake / Self - Voice of "Daphne"

Velma Dinkley / Self - Voice of "Velma"

Janel Parrish - Host