Jarra To

 was a scientist and killed the previous overseer of the Axis. She could manifest herself in many forms. She was in the form of a male Jester when she met the Fifth Doctor. In this form she liked the distorted perception in that the Axis provided. She suggested that they play for The Doctor's TARDIS in a game. She played games with the Doctor's companions. She met Peri in another form, the form of a Bird Keeper, and later as a Carnival Barker. She wanted to give the Doctor his "money's worth", a Grimm's fairy tale. She was a researcher who wanted to reconcile the science and superstition. She craved unpredictability, when the Axis assigned a comdemn notice to her world and put progress on pause, she said that they cossigned her to a living hell of always knowing how to story ends. (AUDIO: The Axis of Insanity)