Most importantly, Dr. Tachyon returned and opened the Blythe Van Rensselaer Memorial Clinic, usually known as just the Jokertown Clinic, to treat the various, often exotic, medical needs of the poverty-stricken Jokers.
Others who work for Kien include a reptilian joker called Wyrm who can track people by their taste, the brain-eating ace Deadhead, drug designer Quinn the Eskimo, a minor ace mercenary named Christian, Tachyon's grandson Blaise Andrieux during his brief stint as leader of the Jumpers, and a small army of crooked cops and politicians who are on the take.