Gregory hails from Hollywood royalty. His grandfather was the legendary singer and actor Bing Crosby. He was born and raised in Beverly Hills, California, studied law, then formed a production company with his lifelong friend, Desi Arnaz, Jr., eventually moving on to become VP of Production for Sandy Howard Productions -- the film company that produced the highly acclaimed Richard Harris movie A Man Called Horse. He’s a member of the Writer’s Guild of America (WGA) and has written 5 television bibles, 25 screenplays, and 10 theatrical treatments. He has developed film and television projects for a variety of Hollywood notables including the legendary Lucille Ball, Dale Pollock, Max A. Keller, Kevin Goetz, Mel Gibson, Donald Petrie, Martha Coolidge, 20th Century-Fox, Columbia, MGM, Permut Presentations, and Hallmark Entertainment. Gregory also wrote the treatment and co-poduced the feature film Hacksaw Ridge, the true story of PFC Desmond T Doss and the subject of this inspiring book.