Kitty was the creator of the refugee ships from Kesta due to corruption in the government she could only make three. She tried to make sure that her daughters got on the ship. When they left she created a barrier to keep out the entropy wave. She cared for the Decayed Master when he arrived at her house injured. She grew fond of the Master, but when an earlier version told him to remove the perception filter she screamed at his true self.
Unbeknownst to Kitty, both of her daughters were murdered by future versions of the Master - Achim made it to the colony ship and escaped the planet, but was later among those culled from the population by the Reborn Master; while Carola was killed by the Saxon Master before she could reach the ship. (AUDIO: Masterful)