FROST, Mark. American, b. 1953. Genres: Plays/Screenplays, Novels. Career: Novelist and screenwriter. Producer and director for film and television series. Publications: SCREENPLAYS: Hill Street Blues (television series), 1981; The Believers, 1987; Twin Peaks (television series), 1990 Storyville, 1992; The Repair Shop, 1998. NOVELS: The List of 7, 1993; The Six Messiahs, 1995. Address: c/o William Morrow & Co. Inc., 1350 Avenue of the Americas, New York, NY 10019, U.S.A.