Jeremiah Gottwald (ジェレミア・ゴットバルト, Jeremia Gottobaruto) is an elite Knightmare Frame pilot deeply concerned with the maintenance of Purist supremacy within Britannian society. He is somewhat overconfident and passionate about furthering his goals, facts which tend to make him rash and impulsive in battle. He was a part of Empress Marianne's guard, and he is deeply affected after failing to stop her assassination. Jeremiah is disgraced after failing to move Suzaku Kururugi to his trial when Lelouch, as Zero, uses his Geass to compel Jeremiah to help them escape. Lelouch calls Jeremiah "Orange," suggesting a hidden connection where none exists, which later becomes a nickname used in taunts by his peers.
Jeremiah becomes obsessed with regaining his honor, which leads to his defeat in battle. He is found barely alive by Prince Schneizel's team of scientists, who enhance him with cybernetic implants. During the Black Rebellion, he awakens prematurely and steals the powerful Siegfried Knightmare to find Zero. C.C. drags him and his Knightmare into the crushing depths of the ocean in her Gawain. He eventually comes into contact with V.V. and the Geass cult, who perfect him and give him a Geass Canceler capable of nullifying the effects of any Geass, bulletproof armor, retractable blades on his wrists, and vision beyond the visible spectrum through his cybernetic eye. He is eventually sent to kill Lelouch, though he soon pledges his allegiance after learning that Lelouch wants to avenge the death of his mother, Marianne. He now takes the nickname "Orange" as a compliment, seeing it as a mark of his loyalty. During the final battle against Schneizel and the Blacks Knights, he fights Anya. He manages to break open the Mordred by self-destructing his own Knightmare and then uses his Geass Canceler to restore her memories. He is later seen feigning protection of Lelouch when Suzaku returns as Zero to assassinate him, suggesting he was part of the promise between the two, Zero Requiem. In a twist of irony at the end of the series, he is shown cultivating an orange farm with Anya.