Gareth is a good-natured and kind person, acting as a father figure to members like Bete. He usually takes a protective attitude towards his Familia members in addition to helping them improve as adventurers. He feels responsible for their safety, blaming himself for the deaths of Line and the others on their first assault to Knossos.
His protective instinct is present all the time. He does not hesitate to stand between them and danger, more than willing to serve as a human shield to protect 