Scoob!

Will Forte Shaggy Rogers (voice) 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) John DiMaggio Restaurant Owner (voice) Kevin Heffernan Bike Cop Gary (voice) Ira Glass Ira Glass (voice) Henry Kaufman Chad / Chet (voice) Maya Erskine Judy Takamoto (voice) Billy West Muttley (voice) Don Messick Muttley (archive sound) (voice) Fred Tatasciore Cerberus (voice) Justina Machado Jamie Rivera (voice) Kennedy Peil Indira Knight (voice) John McDaniel Hal Murphy (voice) Ryan Folsey Beach Guy (voice) Pam Coats Mrs. Rogers (voice) Tony Cervone Ghost / Mr. Rigby / Alice (voice) Adam Sztykiel Officer Casey (voice) Alex Kauffman Officer North (voice) Vanara Taing Baby Rotten (voice) Sarah Lancia Dispatcher Stevens (voice) Maven Morgan Kari (voice) Eric Cowell Ben (voice) Michael Kurinsky Samuel Colton (voice)