オスカー・ドラゴニア

Oscar is an anti-Daemon, praetor-rank Exorcist of the Abbey and encounters Velvet Crowe on several occasions. He is the younger, half-sibling brother of Teresa Linares and serves under Artorius Collbrande, first encountering Velvet as she tries to flee from Titania, the prison island.

(Source: Aselia Wikia)