Chief Engineer Saburo Kamo, affectionately nicknamed "Grandpa" by the Science Ninja Team, occupies the vital role of designing and constructing their advanced mechas and weaponry under Dr. Nambu's direct orders to counter escalating threats. His crowning technical achievement is the Gatchaspartan, the team's new primary mecha developed after the New God Phoenix's destruction. This mecha features the specialized "Hypershoot" mode, activated solely by team leader Ken's "Gatchafencer" sword. Kamo also trains the team on operating these new systems. He appears as a heavyset, middle-aged man with thick dark gray hair and a prominent gray mustache. Kamo typically wears a two-tone blue engineering uniform, an orange scarf, and a matching cap bearing a gold and red "G" symbol. Beyond engineering, he forms a paternal bond with the Science Ninja Team, offering protective care at Nambu's request. This stems from profound personal loss, having outlived his wife, children, and all immediate family except one grandson. Following the ISO headquarters' collapse and Nambu's death, Kamo transitions from engineering and advisory duties to formal leadership, directly commanding the team during their final missions. In the concluding arc, as others doubt the team's survival after confronting Leader Z, Kamo remains fiercely optimistic. He emphatically declares "Gatchaman can never die," comparing them to an "immortal phoenix," showcasing his unshakable faith in their resilience. This optimism extends to his reaction upon detecting an unidentified energy entity escaping Leader Z's destruction; he interprets it as a sign of hope. His leadership and emotional support prove pivotal during the team's most dire challenges.