Warren is a cold and calculated private investigator for a noble family. He often looks into things on behalf of the family he works for, in addition to studying magic in his free time. He uses this magic to try to apprehend criminals in an effort to redeem his past mistakes.

Warren should sound a bit harsh and cold, even when he's being witty. He has an undertone of morality and empathy however, though he's too stubborn to show signs that he does actually care. Try to reference Sebastian from Black Butler (dub) for the voice, though Warren should sound a bit older and more serious.