Will Forte
Shaggy Rogers (voice)
Pemeran
Mark Wahlberg
Blue Falcon (voice)
Jason Isaacs
Dick Dastardly (voice)
Gina Rodriguez
Velma Dinkley (voice)
Zac Efron
Fred Jones (voice)
Amanda Seyfried
Daphne Blake (voice)
Kiersey Clemons
Dee Dee Skyes (voice)
Ken Jeong
Dynomutt (voice)
Tracy Morgan
Captain Caveman (voice)
Frank Welker
Scooby-Doo / Pterodactyl (voice)
Iain Armitage
Young Shaggy (voice)
Mckenna Grace
Young Daphne (voice)
Pierce Gagnon
Young Fred (voice)
Ariana Greenblatt
Young Velma (voice)
Simon Cowell
Simon Cowell (voice)
Christina Hendricks
Officer Jaffe (voice)
Henry Winkler
Keith (voice)
Harry Perry
Harry Perry (voice)
