Dr. X (Image)

Dr. X is an Utrom scientist that has close ties with Leatherhead, who was caught in the blast of the TCRI building in the Image and Mirage comics. She is the only character who debuted in the non-canon (by Mirage Studios standards) Image comics to make it into the Mirage comics, where her name was expanded to Xeinos. She was left behind on Earth after the Utroms left to their home planet, and found and befriended Leatherhead who nursed him back to health. She also played chess with Splinter. Dr. X met Leonardo and Michaelangelo prior to the testing of Leatherhead's second Transmat Device that led to a second Triceraton invasion (TMNT Vol. 3, #19). Dr. X presumably helped Leatherhead construct his two Transmat Devices, though was not seen when Leatherhead recruited members of the Foot and the Turtles to finish up the first Transmat Device he created. Dr. X, with Donatello's help, constructs an android exoskeleton for herself