Caterina is a member of the Annihilation Gang lead by Duke Inferno. She has long, scarlet hair and yellow eyes. She has a fang. She wears a black choker on her neck, and she usually wears a black leather coat and black police-like cap. She uses a black flail as a weapon. She is reckless and brave, and tries not to get helped by anyone. She feels jealous of Constance, since she is more trusted by Duke Inferno.