Hired by Walton, the Sughpervysor does one thing, and one thing only.
He watches women (mostly little girls, actually) and chooses vulnerable targets for Walton and Nigel to stalk and eventually have their way with. There have been three Sughpervysor's so far; the other two were mutilated by Madz for 'going there'.
The current Sughpervysor's name is not known. He wears a very tight gimp suit, is extremely muscley and always smells faintly of women's perfume. It is thought Walton does feed the Sughpervysor, as he wants him to keep his strength up - a skill needed to kidnap victims.