George Sunday is an Irish shopkeeper who's the alter ego of Thermoman, a world-famous superhero from the planet Ultron. He inherited his title from his father Seamus, the original Thermoman, who is now retired. George originally owns a health food store, but tries to avoid attracting customers in order to avoid attention. Only his closest friends know his true identity. He often appears to be an idiot because of his unfamiliarity with Earth culture and has a tendency to take things literally, such as allowing himself to get hit by a bus to cash in a life insurance policy without realising that he had to die.