Bogey Mizuhara is a former soldier who served under Brigadier General Sarah Jones. He captured British soldiers Charlie and Sam Son, delivering them as test subjects for the experimental "Rabbit" human weaponization project run by Dr. Zulowski at the Spiral Palace. His actions are defined by self-interest, prioritizing personal survival over loyalty to either Klaus Daggats' forces or Sarah Jones' command.

During the Grazia conflict, Bogey operates with opportunistic motives. He holds no allegiance to Klaus Daggats, the Spiral Palace hierarchy, or Taito Masaki and his allies. His singular focus on self-preservation leads him to avoid definitive alignment. This neutrality solidifies into a distinct third-party role as events progress. His presence or development in other official media beyond the core series, including movies, OVAs, or spin-offs, is not documented.