Well, If you’re referring to the original Dark Queen, then I’m not sure how much of a ‘back story’ she had. It was so long ago, but I remember we decided that she was a dark ‘witch’ that roamed the universe looking for more power. She also had a special staff that she needed to perform her dark magic, she is seen holding this in the original style guides. The head of the staff was meant to talk and advise her on her evil antics.
Professor T.Bird didn’t have any ‘powers’ as such as far as I can remember. Not super powers anyway, as he was just the brains behind the bunch.
The RatPack characters were definitely created by the Dark Queen, because I remember drawing pictures of her casting a spell to create them.
The original story was mainly written by a great writer called ‘Guy Miller’ who used to work with me at Rare back then, and he was heavily involved in creating the story lines for the characters!