The commander of the Gundam Force. Captain Gundam, who had been pinned down by a giant colonial ship after landing on Earth, was resurrected after losing news. After fusing with Gun Armor, he was able to significantly increase his strength. He provided strength for Alex and Prus and formed the Gundam Force, becoming a resistance organization against the Zeonic.

He can be transformed into Lion Fighter, and its ultimate skill is the "Super Lion Tooth", which is the same as Gun Armor.