Eve (The Mad Woman in the Attic)
Eve was a member of an unknown race of aliens which where destroyed during the Time War by both the Dalek and the Time Lords.
Biology
Eve was a child and has a humanoid body except her skin, eyes and hair colour are red. Her ears were pointy like 'elves'.
Eve's race could read timeliness and manipulate time. They had the ability to possess and control humans. The children liked to play games and Eve controlled the humans she had possessed to play games at the funfair with her so she wasn't lonely.
Biography
When Eve's race was being destroyed by the Daleks and Time Lords her parents sent her away to Earth as an evacuee. Her ship crash landed on a beach in. Harry the caretaker of the funfair found Eve and under orders of Ship, Harry kept her in the haunted mine away from civilisation for her to play games until Ship rebooted.
When the funfair was closed down Eve got lonely and kidnapped and possessed four humans to play with her in the fair. When Rani Chandra came to investigate the funfair on her own she stumbled across Eve.