Hogan

The guard robot's head is firmly protected by a helmet-like protector. It has a sturdy body, and in emergencies, it can extend its arms and legs to physically "cover" and protect its designated target. Although it is assigned as Epsilon's bodyguard, it feels somewhat intimidated because Epsilon is an extremely powerful robot. While it carries out its duties in a businesslike manner, it is also attentive to the children at the facility. When Epsilon battled the "enemy" in the skies above Hunter Valley, the guard robot protected the children at the facility from the shockwaves. When Epsilon ran into a trap to save Wassily, the guard robot forcibly accompanied Epsilon and witnessed the confrontation between Epsilon and PLUTO.