Roger Ma specializes in hand-to-hand combat against the undead. He is the founder of the Zombie Combat Club and the Vampire Combat Club, organizations that focus on battling the undead without the aid of a firearm. He was recently featured as a zombie expert on the History Channel documentary Zombies: A Living History, and is the author of The Zombie Combat Manual: A Guide to Fighting the Living Dead and The Vampire Combat Manual: A Guide to Fighting the Bloodthirsty Undead. He currently trains in Brazilian jiu-jitsu. He lives in Brooklyn, NY.