Edgar "K.B." Montrose (Graham Greene) is an explosives expert and enthusiast. He is largely self-taught, and he has the missing fingers and near-total deafness to prove it. According to Edgar, his interest in explosives started when he was seven and his grandparents gave him a chemistry set for his birthday. Since then, his solution to most any problem has been to blow it up. As he puts it: "Your wife left you? Blow up the stove. Otherwise you'll start cooking for yourself and that's dangerous." His interest in explosives also stemmed from watching Road Runner cartoons.