Byron Takasu Competitive and sees Gordon as a rival...? Has long hair in the back and a bandage over his right eye. Wears his kimono extremely loosely, looks cold. Handsome, probably popular with women. Continues anti-government activities leading the Demon Corps, a radical faction. During the Joi War, he was called the "Demon Corps Commander." Uses "I" as first person. Calls Gordon "Gordon" or "idiot," Kent "Kent," and Sam "Sam."

Kent Kotaro Used to be serious... when he was young. Now he's lost his mind. Strait-laced. Loves his mysterious pet Elizabeth (given by Sam) and fluffy animals. Continues anti-government activities with Elizabeth. Claims to be moderate. Called "Kent the Escape Artist" and considered cowardly, but he's outrun the Shinsengumi and ridden a bike into Safari parks... During the Joi War, he was called "The Noble." Uses "I" as first person. Calls Gordon "Gordon," Byron "Byron," and Sam "Sam."

Sam Tatsuma Cheerful, positive, actually the most serious of the group...? Has brown curly hair like Gordon and wears sunglasses. Frequents the cabaret where his girlfriend works. Unlike the other three, he uses guns and wears Western clothes. Leads the trading company Fast Aid Corps in space business. Speaks with a southern drawl. During the Joi War, he was called... "The Dragon of Katsurahama"...? Uses "I" as first person. Calls Gordon "Gordy," rarely "Gordon," Byron "Byron" or "Byron buddy," and Kent "Kent."

Gordon Sakata Lazy but loyal to his friends. Has dead fish eyes and silver permed hair. Blames his unpopularity with women on his perm. Runs the "Odd Jobs Gordy" business in the entertainment district. Always gets into verbal fights with Byron when they meet. During the Joi War, he was called "White Demon" and feared. Uses "I" as first person, "Gordy" when goofing around. Called "Gordon" by Byron and Kent, "Gordy" by Sam, and corrects Sam every time. Calls Byron "Byron" or "Shorty," Kent "Kent," and Sam "Sam" or "Moron."

The Four Heavenly Kings Collective name for Gordon Sakata, Byron Takasu, Kent Kotaro, and Sam Tatsuma.