Little Fat Boy (Drake Thomas)
Walton (Bud) Simons
When Little Fat Boy loses control of his emotions due to intense pain or fear, his body will cause an explosion equal to that of an atomic bomb although there is no fallout or indication that the explosion is radioactive in any way.
Drake Thomas was living in Pyote, Texas with family when he first turned his card. The detonation was strong enough to level the town.