Johnny Zest has the saddest backstory :(

I kind of made him famous in my world. More accurately, his best friend/roommate (my Sim, Rhett) became a rich and famous boxing champion (thanks to mods). Johnny gained some fame due to being friends with Rhett, and used that to kickstart his career. They're now both famous, and living next door to each other in mansions in Del Sol Valley. Now that Johnny is a celebrity, his family has tried to come crawling back, but he made it clear that it's too late and that he's happy with his own life.