Sean AstinChester (voice) Brian KimmetHarold (voice) Chris KattanBunnicula / Mina's Dad (voice) Kari WahlgrenMina (voice) Eric BauzaPatches the Weredude (voice) Richard Steven HorvitzLugosi (voice) Sonya LeslieQueen Shelia (voice) Fred TatascioreChaos (voice) Patrick SeitzZogthoth (voice) Rhasaan OrangeWeasel (voice) Steve BlumMarvin the Ghost (voice) Tom KennyMr. Molesby / Moles (voice) Carlos AlazraquiGiant Snake (voice) Laraine NewmanGreta (voice) Harland WilliamsThomas Edison's Ghost / Alien (voice) Chad DoreckColt Bifton (voice) Joe J. ThomasPa Rabbit (voice) Carl LumblyLead Prison Guard / Vampire Bat (voice) Daran NorrisAgent 51 (voice) Rick ZieffGeneral Cashews (voice) Yuri LowenthalZakarov (voice) Donovan PattonPutt-Putt Pete (voice) Max MittelmanGenie (voice) Robert CatriniRat Pack Boss (voice) Jasmine KaurDJ Demon (voice) Will FriedleCaptain Science Magic Love (voice) P.J. ByrneBoogaloo (voice) David ShaughnessyHarold's Tail (voice) Roger Craig SmithParty Animal (voice) Trevor DevallLucky Cricket (voice) Ian WasselukRegista / Sceneggiatore Matt WhitlockRegista / Sceneggiatore Maxwell AtomsRegista / Sceneggiatore / Produttore Jessica BorutskiRegista / Sceneggiatore / Produttore Robert HughesRegista / Sceneggiatore Shaunt NigoghossianRegista / Produttore Karl HadrikaSceneggiatore Erin KavanaghSceneggiatore Darrick BachmanSceneggiatore Jordan GershowitzSceneggiatore Steve ClemmonsSceneggiatore Joseph AdamsSceneggiatore Merrill HaganSceneggiatore Lane RaichertSceneggiatore Matt SullivanSceneggiatore Caldwell TannerSceneggiatore Jesse PorterSceneggiatore Kyle StaffordSceneggiatore Dick GrunertSceneggiatore John Bailey OwenSceneggiatore Bryan CondonSceneggiatore Brandon KruseSceneggiatore Josie CampbellSceneggiatore Carlos RamosSceneggiatore Brady KlostermanSceneggiatore Ethan NicolleSceneggiatore Edward RiveraSceneggiatore James HoweConsulting Producer / Book Paul Edward-FrancisCompositore Musicale Originale 
