If you read the books which he made before the strip (so far), you’ll find out who’s who. G-man and his brother, Great Man, both got there powers from a magic blanket. G-man used it as a cape, and Great Man used it as a belt. The magic blanket gave them flight, super-strength and super-toughness (semi-invulnerability). G-man has a speedster friend named Sparky, a friend whose powers are space-related named Sunny, which is short for Suntrooper Solazzo, a friend who can camouflage (and turn invisible when he’s holding his breath) named Tanman, who is currently being called Eddie Delta because of the reality storm, and a friend with enhanced strength, agility, resilience, sight, smell, taste and hearing named Billy Demon. Great Man has a friend named who carries a lightning staff named Kid Thunder. Kid Thunder’s father, who also carries a lightning staff, is named Captain Thunder. There is a adult Wizard character named Wizard Williams. As of this strip, Captain Thunder and Wizard Williams have not yet appeared in the webcomic. G-man and Great Man’s parents do not have powers, nor do some more minor characters who are kids at the main characters’ school.
He never says it!