Frank Shamrock was the undefeated mixed martial arts (MMA) champion for 10 years and is the only person to win a title in all three major North American fight promotions (UFC, WEC, and Strikeforce). He has worked as an NBC sports announcer, is an owner of fight venues, and created his own line of MMA training gyms. He is the author of Mixed Martial Arts for Dummies. He lives in Los Angeles. Charles Fleming is a writer, an adjunct faculty member of the University of Southern California, and a reporter whose writing has been published in such publications as Entertainment Weekly, Newsweek, and Vanity Fair. He is the coauthor of several books, including The Goomba Book of Love, The Goomba Diet, A Goomba’s Guide to Life, My Lobotomy, and Three Weeks in October. He lives in Los Angeles. Mickey Rourke is an actor, a screenwriter, and a retired boxer. He has acted in such films as Angel Heart, Iron Man 2, and Sin City, and he won a Golden Globe Award in 2009 for his lead role in The Wrestler. He lives in New York City.