Susan is the guitarist of The Devil's Clan band and the self-appointed leader. She is considered the most mature, composed, and level headed of the trio, but she also has tendencies towards fussiness and can be annoyingly overbearing towards Nemo and Delany. She often mediates between the two but frequently butts heads with them due to their contrasting natures. She is also occasionally vain as she makes beauty a point of emphasis.