Bran/Erik might sing. WHO KNOWS. He's locked in his apartment, can't leave... he'd either sing or play some kind of instrument. Yay for musical entertainment. :D
Vlad/Dracula will be beyond pissed off. Seriously. Expect a lot of Dracula-snarling about how humanity is pitiful, he is supreme, etc.
Hannah/Cinderella will just... ask about the prince or something. Idk. Haven't gotten that far yet, I still have LOST on the brain. Ahem.