High Quality Content by WIKIPEDIA articles! Keith Robert Andreassi DeCandido (born April 18, 1969 in New York, United States) is an American science fiction and fantasy writer and musician, who works on comic books, novels, role-playing games and video games, including numerous media tie-in books for properties such as Star Trek, Buffy the Vampire Slayer, Doctor Who, Supernatural, Andromeda, Farscape, Leverage, Spider-Man, and X-Men.