Seriously awesome show. Hilarious. Not sure on their types. Without looking above, I'd say
Jane ExFP (leaning ENFP)
Comparing to the OP's types, I can see why you'd think Susan is a feeler but it comes across to me as more learned behaviour than innate. She can also be very blunt and particularly in her career you can see her oozing Te. She's always organizing something.
They are all pretty S in general, Jane and Jeff are closer to N though. Maybe Steve.
Steve is just like a walking guy stereotype. Unclear on N/S. Maybe more P than J, but probably not ISTP. Maybe intp, intj, istj.
I think you're right about Sally being J. I'm not sure why I thought P initially. She definitely seems more F than for example the guys, but I could also see T for her.
Of course the characters are mostly insane, so that's a factor....