Age: 20 Height: 170cm Rank: Ensign (3rd Lieutenant), Tactical Chief of Space Battleship Yamato Appearance: Short, dark green hair. A young man with a toned physique. Characterized by a sharp gaze, he possesses a commander-like dignity despite his youth. Personality: Possesses a very strong sense of justice and cares deeply for his comrades. Excellent in intuition, creativity, and leadership, he is a man of action who can make bold decisions in difficult situations. He has the courage to take dangerous gambles to realize his ideals. On the other hand, he has a strong sense of responsibility and suffers deeply over failures caused by his own judgment, growing through those experiences. A young man who has acquired calm judgment like Kodai, though he sometimes takes detours or acts recklessly, and does not hesitate to speak up to superiors. He never forgets respect for his officers.

Age: 27 Height: 174cm Rank: Captain (1st Colonel), Commanding Officer of Space Battleship Yamato Personality: A hot-blooded man with a strong sense of justice who cares for his comrades, though he sometimes acts on emotion. He is a young man who has grown through every hardship, acquiring a sense of responsibility and calm judgment. Fiancé of Yuki Mori, whom he calls "Yuki." He has kept her waiting for marriage for five years.

Age: 27 Height: 165cm Rank: Commander (2nd Colonel), Commanding Officer of Supply Mother Ship Asuka Personality: Possesses calm and intellectual judgment, a strong sense of responsibility, and compassion for her comrades. Combining inner strength and action, she supports the crew even in harsh battles and has built a deep relationship of trust with Susumu Kodai. Fiancée of Susumu Kodai, whom she calls "Kodai-kun" or "Susumu Kodai" when speaking firmly. Kodai's subordinates call her Commander Yuki, Yuki-san, or Big Sis Yuki.

Age: Deceased at 58 Height: 180cm Rank: Admiral, First Captain of Space Battleship Yamato Personality: A master commander with extensive combat experience, characterized by composure and a strong sense of responsibility. He trusts his subordinates deeply and values human life above all else, yet makes resolute decisions when necessary. A noble figure who fulfilled his mission to the end despite his illness to protect the future of Earth and humanity. He rests with the Yamato to protect Earth and is enshrined at Hero's Hill.

Age: Late 30s Height: Late 170s cm Personality: Leader of Galman-Gamilas. A politician and military leader with great charisma and outstanding leadership, he puts the prosperity of his motherland Gamilas first. While showing a cold side, he has a deep sense of responsibility toward his people and trust in his subordinates. A worthy rival who comes to acknowledge Susumu Kodai and his crew throughout the story.

Name: Starsha Iscandar Age: Unknown Height: Late 160s cm Personality: Queen of Iscandar. Combining deep compassion and high intelligence, she entrusted the Cosmo Reverse System to save a dying Earth. A pacifist who does not desire conflict, she is a noble figure with a strong sense of responsibility and resolve, sacrificing her own life to open a path for humanity's future. Wife of Mamoru Kodai.

Age: 29 Height: Approx. 165cm Rank: Commander (2nd Colonel), Commanding Officer of Wave Experimental Ship Ginga Personality: Equipped with intelligence and calm judgment, she approaches missions with a strong sense of responsibility while also possessing the kindness to care for her comrades and family. A rational personality who acts while objectively assessing the situation, she plays a crucial role in the future of humanity.

Age: Late 40s Height: 180cm Rank: Captain (1st Colonel), Commanding Officer of Battle Carrier Hyuga Personality: Calm and logical, yet deeply compassionate toward his comrades. He is a man of outstanding intelligence and responsibility who never gives up in any crisis and pursues the best possible solution. He was the best friend of Susumu's late brother, Mamoru Kodai, and has guided Susumu.

Name: Sasha Iscandar Kodai Age: 17 Height: Late 150s cm Rank: Petty Officer 2nd Class, assigned to the Third Bridge of Space Battleship Yamato Personality: Gentle and kind-hearted, with a strong sense of justice and responsibility, she is full of compassion for others. Despite being at the mercy of a cruel fate, she is strong-willed, accepting her mission and making courageous decisions for the sake of the future. Daughter of Mamoru Kodai and Starsha.

Name: Yurisha Iscandar Age: Early 20s Height: Approx. 160cm Personality: Starsha's younger sister. Gentle and kind-hearted, she possesses a personality full of compassion and a strong desire for peace, yet also has the responsibility and strong will of royalty. A person of high intelligence and mental strength who plays an important role for the future of humanity and Iscandar.