Human Jonathan (voiced by Andy Samberg) married the vampire Mephis (voiced by Selena Gomez) and gave birth to a "half-breed" Dennis (voiced by Ash Brinkoff). The hotel rule of "only allowing monsters to enter" was completely sidelined, and the Hotel Transylvania finally opened its doors to humans. But Dennis didn't show any "monster" characteristics, and Dracula (voiced by Adam Sandler) and Mephis...More