Will ForteShaggy Rogers (voice)

Frank WelkerScooby-Doo / Pterodactyl (voice)

Mark WahlbergBlue Falcon (voice)

Jason IsaacsDick Dastardly (voice)

Ken JeongDynomutt, Dog Wonder (voice)

Amanda SeyfriedDaphne Blake (voice)

Gina RodriguezVelma Dinkley (voice)

Zac EfronFred Jones (voice)

Iain ArmitageYoung Shaggy (voice)

Ariana GreenblattYoung Velma (voice)

Mckenna GraceYoung Daphne (voice)

Pierce GagnonYoung Fred (voice)

Kiersey ClemonsDee Dee Skyes (voice)

Tracy MorganCaptain Caveman (voice)

Simon CowellSimon Cowell (voice)

Harry PerryHarry Perry (voice)

Kevin HeffernanBike Cop Gary (voice)

Christina HendricksOfficer Jaffe (voice)

Henry WinklerKeith (voice)

John DiMaggioRestaurant Owner (voice)

Ira GlassIra Glass (voice)

Henry KaufmanChad / Chet (voice)

Maya ErskineJudy Takamoto (voice)

Billy WestMuttley (voice)

Don MessickMuttley (archive sound) (voice)

Fred TatascioreCerberus (voice)

Kennedy PeilIndira Knight (voice)

John McDanielHal Murphy (voice)

Ryan FolseyBeach Guy (voice)

Justina MachadoJamie Rivera (voice)

Pam CoatsMrs. Rogers (voice)

Tony CervoneGhost / Mr. Rigby / Alice (voice)

Alex KauffmanOfficer North (voice)

Vanara TaingBaby Rotten (voice)

Sarah LanciaDispatcher Stevens (voice)

Eric CowellBen (voice)

Maven MorganKari (voice)

Adam SztykielOfficer Casey (voice)

Michael KurinskySamuel Colton (voice)

Tony CervoneDirector

Chiranjiv MakwanaScreenplay

Noëlle RaffaeleStory Artist

Matt LiebermanScreenplay, Story

Eyal PodellStory

Jonathon E. StewartStory

Jack DonaldsonScreenplay

Adam SztykielScreenplay, Executive Producer

Rafael ZentilHead of Story

Derek ElliottScreenplay

Joe RubyCharacters

Ken SpearsCharacters

Andy HorwitzExecutive Producer

Allison AbbateProducer

Dan PovenmireExecutive Producer

Richard SuckleExecutive Producer

Pam CoatsProducer

Charles RovenExecutive Producer

Chris ColumbusExecutive Producer

Jesse EhrmanExecutive Producer