Jayde

From Tardis Wiki, the free Doctor Who reference

Jayde was a Cat-Person who invaded Earth in search of beacons under Queen Aysha. Jayde was sent to investigate the Grange, a haunted manor where a beacon had been buried years before.

She met Atimkos, a Euterpian who, in order to stop her destroying the Earth, regressed her into a kitten. (MA: Invasion of the Cat-People)