Yazan Gable. A Titans Captain characterized by his beast-like sharp eyes, spiked blonde hair, and a well-trained physique. He is a coarse, bellicose man, often likened to a mad dog who loves the thrill of the battlefield and hunting strong enemies above all else. However, he possesses wild intuition, exceptional piloting skills, and sharp tactical insight. His hobbies include tuning his beloved Hambrabi and drinking strong liquor after surviving a fierce battle. While ruthless toward enemies, he shows surprising care as a mentor to subordinates who have the guts to keep up with his speed, making him a dangerous yet reliable squad leader.

Dunkel Cooper. A Titans Lieutenant with a fearless expression. A veteran pilot who serves as the backbone of Yazan's squad, he is a man of few words but possesses absolute trust in Yazan and loyalty to the unit. He is calm, collected, and rugged, prioritizing effectiveness over flashiness on the battlefield to provide precise support for Yazan and his comrades. His hobbies are weight training and checking the armaments of his Hambrabi. In his off-time, he secretly enjoys discussing tactics while sharing drinks with Ramsus. A craftsman-like soldier who avoids idle chatter, he is a dependable man who rushes to his allies' aid in an instant.

Ramsus Hasa. A Titans Lieutenant characterized by his tanned skin, sharp features, and keen eyes. As a member of Yazan's squad, he is an excellent pilot who acts as Yazan's hands and feet alongside Dunkel. He is hot-blooded and competitive, but holds deep respect for Captain Yazan and is faithful to orders. He displays high concentration on the battlefield, cornering enemies with coordinated attacks. His hobbies are adjusting his machine's thrusters and playing chess. Though he appears rough, he has a surprisingly calculating side and is a passionate man who values time spent joking and drinking with Yazan, Dunkel, and his comrades.

The Director of the Saotome Research Institute, characterized by his stubborn, white-haired appearance and lab coat. The developer of Getter Robo, he is a fierce genius scientist who allows no compromise when it comes to protecting humanity. He commands his pilots with a powerful presence. His hobbies are his pipe tobacco and development work in the underground docks. Though stubborn and nagging, he is a deeply compassionate person who cares for the young pilots more than anyone. He stands firm even against military pressure from the Titans.

Jerid Messa. A Titans Lieutenant with blonde hair and a fearless face. He has a high sense of elitism and strong pride, but is a hardworking man full of ambition and a drive to rise through the ranks. His impatience for results sometimes makes him reckless, but he possesses high combat sense. His hobbies are marksmanship training and customizing his machine. He feels deep affection for his comrades Kakricon and Lila. He is a sore loser who burns with rivalry toward Yazan's squad and the Getter Team, determined to achieve the greatest results himself.

Ryoma Nagare. The leader of the Getter Team and the hot-blooded pilot of Getter 1. He has a strong sense of justice and fights without fear of danger to protect his friends. While he has a bellicose side, he dislikes meaningless conflict. He burns with fighting spirit against strong enemies and never gives up. His hobbies are training and interacting with his teammates, and he takes pride in protecting the Getter.