The party goers confuse me, on one hand it's a party so and they're enjoying it so I'm thinking SJs but they're a great big bunch of weirdos (for the time) and SJs tend to be very sensitive to the perceptions of others, so instead I'm thinking they're mostly INTPs (natural weirdos) with some other complementary types mixed in, and I agree they're would be a ESFJ running the show, so really what you've got is an ESFJ who has gone out and collected the sort of people who will accept him for who he is regardless of what they may be, so aside from the INTPs we're looking at an assortment of other NPs.
Maybe more ENFPs and ENTPs than INTPs and INTJs?
INTPs and especially INTJs would need extroverts to drag them into anything resembling a party, bit if there's too many extroverts Frankenfurter would have trouble running the show like he does, so yeah, I'm sticking with predominantly INTPs with other NPs mixed in.