Man, this set my brain on fire.
I'm now thinking of a character who spends 99% of the year as a boring CPA out of Council Bluffs, Iowa, but when the Juggalo Gathering comes...
DJ RobotFingaz comes out. He specializes in 8bit Kid Rock covers and performs entirely in Optimus Prime armor made out of Faygo Cans. He never turns down performing lap dances for anyone, and is known for making sweet-ass weed chili and is a backyard wrestling powerbomb expert. He is also roughly 350 pounds (2% muscle...ladies) and covered in rub-on tattoos.
His wife occasionally calls and he tells her that he's at a State Farm in northern Michigan working out car accident settlement claims.