Byakuya Togami holds the title of Ultimate Affluent Progeny.  With that kind of title, as you could imagine, this guy's an arrogant son of a gun.  Togami is very blunt and cold about things, he seems himself as the only worthy human being, and he is determined that he will win the killing game.  Byakuya has a mid-ranged but stern voice, his VA should have a kind of low vocal range, and he is rather one note, so maybe an easier acting role.  For the audition, introduce yourself and just say two of the provided lines.  Also, sing a song you think would fit the character, good luck!