Will ForteShaggy Rogers (voice) Mark WahlbergBlue Falcon (voice) Jason IsaacsDick Dastardly (voice) Gina RodriguezVelma Dinkley (voice) Zac EfronFred Jones (voice) Amanda SeyfriedDaphne Blake (voice) Kiersey ClemonsDee Dee Skyes (voice) Ken JeongDynomutt (voice) Tracy MorganCaptain Caveman (voice) Frank WelkerScooby-Doo / Pterodactyl (voice) Iain ArmitageYoung Shaggy (voice) Mckenna GraceYoung Daphne (voice) Pierce GagnonYoung Fred (voice) Ariana GreenblattYoung Velma (voice) Simon CowellSimon Cowell (voice) Christina HendricksOfficer Jaffe (voice) Henry WinklerKeith (voice) Harry PerryHarry Perry (voice) John DiMaggioRestaurant Owner (voice) Kevin HeffernanBike Cop Gary (voice) Ira GlassIra Glass (voice) Henry KaufmanChad / Chet (voice) Maya ErskineJudy Takamoto (voice) Billy WestMuttley (voice) Don MessickMuttley (archive sound) (voice) Fred TatascioreCerberus (voice) Justina MachadoJamie Rivera (voice) Kennedy PeilIndira Knight (voice) John McDanielHal Murphy (voice) Ryan FolseyBeach Guy (voice) / 剪辑师 Pam CoatsMrs. Rogers (voice) / 制片人 Tony CervoneGhost / Mr. Rigby / Alice (voice) / 导演 Adam SztykielOfficer Casey (voice) / 剧本 / 执行制片人 Alex KauffmanOfficer North (voice) Vanara TaingBaby Rotten (voice) / 剪辑师 Sarah LanciaDispatcher Stevens (voice) Michael KurinskySamuel Colton (voice) / Production Design Tony CervoneGhost / Mr. Rigby / Alice (voice) / 导演 Adam SztykielOfficer Casey (voice) / 剧本 / 执行制片人 Pam CoatsMrs. Rogers (voice) / 制片人 Michael KurinskySamuel Colton (voice) / Production Design Vanara TaingBaby Rotten (voice) / 剪辑师 Ryan FolseyBeach Guy (voice) / 剪辑师 Gabe HilferMusic Supervisor Tom RueggerVisual Effects Designer Bill HallerHead Of Animation Lex CassarVisual Development Noëlle RaffaeleStory Artist Rafael ZentilHead Of Story 
