I searched and couldn't find this anywhere on the forum. So...these are my theories. Tentative theories, as I've only seen all of season one. Feel free to correct, berate, or beat with a stick any silly suggestions I make. Most of these are merely instinctive.
Dylan- I can't begin to guess a complete type. Ixxj?
Rebecca Valentine- INTj????? I can't seem to get a clear impression of her.
Tyr Anastazia- ISTj
Seamus Harper- ENTp
Trance Gemini- INFj
Rev Bem- ISFp????
Rommie- ENTj?
Feedback?