Captain Hans Grimm (ハンス・グリム Hansu Gurimu), callsign "Archer", was an Osean pilot, captain, and the fourth member of the Osean Air Defense Force's Wardog Squadron (later Razgriz Squadron). Although he was still training to become a replacement pilot at the time, Grimm took off in defense of Sand Island Air Force Base on September 27, 2010, and officially joined Wardog mid-battle.