|Warren PattersonJulie LemieuxVoiced by 1 other||TracyHilary CooperVoiced by 1 other||Johnny B DeadBill ColgateVoiced by 1 other||GorgoolLen Carlson|
|ServantHoward Jerome||MomSally Cahill||DadTony Rosato|
|Billy CastlemanDaniel DeSanto||Aunt DoloresJayne Eastwood|
|Dr. MalamarAdrian Truss|
Listen to all the actors who have voiced the following Monster by Mistake characters.