Doppo Orochi, a 10th dan karate grandmaster, stands 178 cm tall and weighs 110 kg, possessing a muscular build, noticeable facial scars, and a right eyepatch from past combat injuries. His bald head and traditional karate gi, emblazoned with "Shinshinkai" kanji on the right side and "Director" on the collar, mark his role as founder of the Shinshinkai Karate School. Fifteen years prior to the Underground Arena Saga, he encountered five-year-old Katsumi Orochi at a circus after Katsumi's father died. Doppo adopted the boy, training him in Shinshinkai Karate and establishing their father-son bond. Married to Natsue Orochi, he also mentors students like Kiyosumi Katou and Atsushi Suedou. Titled "God of War," "Man Eater," and "Tiger Slayer" for feats including slaughtering a Siberian tiger in his youth, Doppo combines pride in karate's supremacy with tactical intelligence. He meticulously analyzes opponents' stances and techniques pre-combat, preparing multiple strategies. Despite his fierce reputation, he shows familial concern, such as shielding Katsumi from dangerous foes like death-row convict Dorian. His devotion involves practicing each technique at least one thousand times daily, though this traditional focus can leave him vulnerable to unconventional attacks. He specializes in Shinshinkai Karate and his self-developed Orochi-ryuu Karate, wielding superhuman physical traits, martial arts mastery, and extrasensory perception to sense bloodlust or detect concealed weapons. Key techniques include the defensive **Sangan** stance enhancing reaction speed; the **Kokoken** strike targeting the nose's Endou pressure point to induce blindness; limited attack reflection via **Mawashi Uke**; the **Bodhisattva Fist** suppressing bloodlust and resisting detection; and durability-negating **Roppa Gaeshi** strikes targeting cranial sutures. He demonstrates analytical prediction, accurately tracking Dorian's movements under hypnosis. His pivotal battles include facing Yujiro Hanma, landing significant blows including a chokehold and strikes denting Yujiro's torso, briefly overwhelming him before Yujiro activated his Demon Back—a fight costing Doppo his right eye. During the Maximum Tournament, he fought Gouki Shibukawa to a near-stalemate, showcasing tactical adaptability despite losing. He confronted Dorian twice: first losing his left hand to a concealed wire-cutter, later avenging the injury despite blast scars from an explosive. In later years, he withstood a direct punch from Miyamoto Musashi after being bisected, continuing to fight despite severe injuries. Following the Maximum Tournament, he retrained from scratch to refine his strength, surpassing prior capabilities. This growth was evidenced by improved performances against opponents like Dorian and acknowledgment from peers like Retsu Kaioh. His resilience is marked by recovery from major injuries—eye loss, hand dismemberment, and full-body trauma—often returning to combat with enhanced determination.