Nikki Jupiter

Nikki Jupiter was a private detective and later a brief companion of the Tenth Doctor.

Biography
When Nikki first met the Doctor, she was investigating the criminal underworld of New Memphis. She followed her father who was also a Private Detective. At age seventeen she first met the Doctor. After she stopped the corruption of the Underworld a Judoon called Rok Ma joined her detective agency. (NSA: Judgement of the Judoon)