Matthew J. Costello is the author or coauthor of numerous novels and nonfiction works. His articles have appeared in publications including the Los Angeles Times and Sports Illustrated. He scripted Trilobyte's bestselling CD-ROM interactive dramas The 7th Guest and its sequel The 11th Hour, as well as many other videogames. Along with F. Paul Wilson, Costello, created and scripted FTL Newsfeed which ran daily on the Sci-Fi Channel from 1992-1996. His television credits also include shows on Disney, the BBC, and many others. In 2005 his novel Beneath Still Waters became a movie (same title) by director Brian Yuzna.