Originally, this was going to be a joke character of sorts. The idea behind him was that he was going to be a mesmer fascinated with Kaesmer’s trick. (Kaesmer being a mesmer who instead of using armor/clothes, she decides to fight naked while wearing an illusion in order to preserve her favorite dress) He even had a fake background story in which he was a naked mesmer who wanted to create a boy band (the rest of the band members were his own illusions), and in order to get himself known, he traveled across Tyria , helping people everywhere while singing.
Real character background.
Roh, as everyone knows him, was a street performer with dreams of joining the circus before he had to run away from Ebonhawke when his family was accused of conspiring against the Queen. Years later, he’s back with a mask, and ready to clear his family name at whatever the cost.