I have a few tips for voicing a character like kureo Mado. 1: He has a mid tone that at times switches to a high like tone 2:make sure his accent is there(slightly British sounding) 3: Research the characters you want to voice(optional) 4: EMOTIONS, as a VA we need to make sure the emotions of the character are easily heard and very apparent, but not too apparent as that would throw of its personality.