Stephen Greenhorn (born 5 September 1964[1]) wrote the Doctor Who television stories The Lazarus Experiment and The Doctor's Daughter. He also wrote the online comic story Mind Shadows.
By virtue of having written The Doctor's Daughter, Stephen Greenhorn created the Hath, and introduced Jenny, the Doctor's daughter, who would later get her own audio spin-off series. He was usually credited on Doctor Who whenever the Hath made re-appearances, such as in The Magician's Apprentice.