Scoob!

Mckenna Grace as Young Daphne (voice) Ken Jeong as Dynomutt, Dog Wonder (voice) Ariana Greenblatt as Young Velma (voice) Kiersey Clemons as Dee Dee Skyes (voice) Ira Glass as Ira Glass (voice) Fred Tatasciore as Cerberus (voice) Billy West as Muttley (voice) Don Messick as Muttley (archive sound) (voice) Zac Efron as Fred Jones (voice) Christina Hendricks as Officer Jaffe (voice) Henry Winkler as Keith (voice) Iain Armitage as Young Shaggy (voice) Simon Cowell as Simon Cowell (voice) Mark Wahlberg as Blue Falcon (voice) Pierce Gagnon as Young Fred (voice) Jason Isaacs as Dick Dastardly (voice) Tracy Morgan as Captain Caveman (voice) Maya Erskine as Judy Takamoto (voice) Tony Cervone as Ghost / Mr. Rigby / Alice (voice) Will Forte as Shaggy Rogers (voice) Frank Welker as Scooby-Doo / Pterodactyl (voice) Gina Rodriguez as Velma Dinkley (voice) Kevin Heffernan as Bike Cop Gary (voice) John DiMaggio as Restaurant Owner (voice) Justina Machado as Jamie Rivera (voice) Amanda Seyfried as Daphne Blake (voice)

Rico Nasty Songs Tom Holkenborg Original Music Composer Eyal Podell Story Jack Harlow Songs Lex Cassar Visual Development Dan Povenmire Executive Producer Allison Abbate Producer Charlie Puth Songs Tom Ruegger Visual Effects Designer, Art Designer Pink Sweat$ Songs Jack Donaldson Screenplay Charles Roven Executive Producer Gabe Hilfer Music Supervisor Matt Lieberman Screenplay, Story Ava Max Songs Richard Suckle Executive Producer Chris Columbus Executive Producer Tony Cervone Director