Yeah, that's a good point about Cole always being a demon. Then again I thought he had come a long way but I suppose either the actor wanted out or they wanted the show to go in a different direction? I thought it was rather in a okay 'whatever' fashion that they let him crash and burn and just be evil at the end.
No idea about Andy, it was a shame though because I thought he and Prue had great chemistry.
Catherine Carey was Mary Boleyn's daughter and quite possibly Henry VIII's. (Mary was his mistress after all before he dumped her for Anne.) The thing is, Catherine was a girl so there was no need for him to legitimise her as he did with Elizabeth Blount's son Henry Fitzroy. When you look at portraits of Catherine's daughter Lettice Knollys, you'll almost think you're looking at Elizabeth I. – so that always made me think it's more than the Boleyn side at play here.