He is a former member of the Phantom Troupe, only joining for the chance to fight Chrollo. His enjoys fighting powerful opponents which Gon and Kilua have the potential towards, which gives the two boys his respect, although he also claims that what's useful today would be trash tomorrow. This makes him almost a murderous sociopath. The thought of fighting strong opponents gives him such a thrill that it's actually an orgasmic experience for him.
His appearance is that of a jester or clown.