Kooter was my idea at first, but I can't take full credit for his legacy, 'cuz a bunch of other people did stuff with him that resulted in his final destiny...
Basically, there was a feud between Beau Michaels and Cameron Cruise, during which Beau fell madly in love with Cameron. Then they got married, somehow, even though Cameron Cruise hated Beau and wanted nothing to do with him. Then, somehow Beau got pregnant by Cruise, even though Cruise to this day claims he never (willingly) slept with Beau.
During a match, I forget which, Beau threw what looked like a big dead fetus into the ring. He had aparently miscarried. So Felix Red stole the fetus and brought it to some weirdass underground bio-lab, where mad scientists brought the fetus back to life, pumped it full of crazy steriods, and physically aged it a few decades, creating a giant purple-ish mutant thing that liked to yell and chokeslam people. This freak of science and nature was named Kooter Michaels-Cruise. It's original reason to exist was to be Felix's lackey, but KMC was turned to the side of good by Snow White and Cameron Cruise. Then KMC had a philosophical crisis, possibly because sometimes he'd talk like he was in Lord of the Rings, and sometimes he'd just yell gibberish, depending on who was writing him. Recently he died, but we all know that's temporary.
So basically, Kooter was supposed to be like Tyler Fullington when he joined Raven's Nest way back in the day. Y'know, Cruise/Beau = Sandman, Felix = Raven, Kooter = Tyler, 'cept bigger and not as smart or mature. Then Kooter became a bigger star than Cruise, Beau, and Felix put together, so he had to be written off the show to make sure he didn't win Ultratitle and make everyone look stoopid.