Cheshire Cat (Banished)
For a long time it appeared that Cheshire Cat was a wyldfae, aligned with Elegast and a valuable source of information for Evan Crowly. However, during the Wrongfully Accused case it turned out that he had been playing Evan for months, and that he was actually working for the Jade Court. When feeling for his aura, Evan noticed a distinct impresson of the Kitsune they encountered during their first case.
After Evan imprisoned him in a magic circle, Queen Mab retrieved him and dragged him off to Fairy.