René is a vampire city guard who often spends his time with Lacus Welt and Mikaela Hyakuya. He shows up a few times during both seasons, giving him the rank of a minor role for this.

He holds himself as civil as he speaks in a proper-mannered tone; as well as being calm enough to be capable of objective judgement. His voice should be low-pitched and mostly monotone: similar to his anime counterpart, but do with the role what you will. René sees humans as mere livestock, like all vampires, but has a courteous demeanor towards them, and also appears to be obedient when given orders. He is unapproving of Mika's odd behavior, but is overall unconcerned about him.