Kyouji Kasshu
Kyouji is Domon’s older brother. His occupation isn’t, surprisingly, a gundam fighter but a scientist (biologist). He could even be considered a gundam engineer since he helped his father build the “Ultimate” Gundam or later “Dark” Gundam. Unlike his younger brother, Domon, Kyouji is pretty cool, calm, & collected most of time. It takes a great deal to make him angry. When he does get angry though, he doesn’t go berserk like his brother but rather ignores the person whom he’s angry with for a little while.
He piloted the Dark Gundam but really had no control since the Dark Gundam basically took Kyouji for its fuel (core unit) & piloted itself. When the impact with the Earth caused the computer to malfunction, that was the result. He only took the Dark or “Ultimate” Gundam to Earth because his father had him instructed him to. His father didn’t want the Ultimate Gundam to be in the hands of NeoJapan’s corrupt government, particularly Ulube Ishikawa (The head of it). Of course, this led Ulube to lie about what really happened to cover his greedy tracks. He piloted the Gundam Spiegel as Schwarz Bruder. Schwarz is nothing but a copy of Kyouji made from DG (Dark Gundam) Cells and Kyouji’s “memories”. When the Dark Gundam defeated the real Schwarz Bruder, gundam fighter of NeoGermany, was when Kyouji made Schwarz into his “mirror image.” He did this for the sole purpose of protecting Domon.
In Ep. 44, Domon supposedly defeats Kyouji with the Erupting Burning Finger combined with Sekiha Tenkyoken. Kyouji then disappears.