Jack-O is a Raven, AKA a mercenary that pilots a mech. He was a high-ranking member of the Ravens' Ark who believed that the Ark should be neutral in corporate affairs. He later became the enigmatic leader of Vertex, who opposed the company-led Alliance. He is quite radical in his beliefs. His mech, Foxeye, is a white and blue heavyweight mech with the powerful KARASAWA laser rifle, a left arm exclusive grenade launcher, and two large back missiles. He thinks the Ark should be neutral.