Alex's (Quackity) demeanor depends on the mood he is in, so you could find him goofier, flirtier, more mature and more respectful, or more sarcastic and insulting, even. He has a dirty mind but respects women. He is sarcastic when he wants to be and serious when he needs to be. People can say he is funny and charming but also that he is a bit annoying. He has a tendency to overshare and can come off as immature, but he is sweet and caring when you get to know him.