James Stevens

James Stevens, authored Who Killed Kennedy, a book chronicling his attempts to learn more of the secretive organisation known as UNIT.

Biography
Stevens discovered, and found himself obsessed by, UNIT, "Dr. John Smith]" and a history of alien intervention in [[Human affairs dating back at least to the Shoreditch Incident. He met Dodo Chaplet, a mentally broken one-time companion of the Doctor in first incarnation as an informant. However, he developed a romantic relationship until, forces determined to silence her, murdered her. At her funeral, Stevens briefly met the Doctor himself.

To ensure that history kept to its proper course, Stevens had the unwanted destiny of traveling back in time to 1963 via time ring in order to assassinate United States President John F. Kennedy. Stevens, who had seen a photo of an older version of himself committing the act, knew this and the knowledge haunted him. (MA: Who Killed Kennedy)

Before leaving the present to commit the assassination of Kennedy, Stevens would mentor Ruby Duvall, a young aspiring journalist. (NA: Happy Endings)

Behind the Scenes
Who Killed Kennedy came out with the fictional James Stevens listed as its co-author, with its real author, David Bishop. Stevens supposedly appears in the form of one of the unnamed journalists who appear in Spearhead From Space and played by various extras.