Karura was once princess of Na-Tunku before she was taken down and replaced with a puppet of the Shakukoporu. She is found after killing many enemy soldiers *with her bare hands* in order to escape. Even though she's royalty, she decides to live a "normal" life as "Karura", serving Hakuoro. She and her brother are the last two Giriyaginas on Earth. Her superhuman strength lets her wield a ridiculously heavy sword, thus making her a very effective shock troop, acting more like Hakuoro's tank on the battlefield and ripping through enemy troops. She's often seen carrying a jug of sake around, sometimes even on the battlefield. She appears to have known Urutori from long ago, though their shared history is never revealed. During the slave's revolt in Na-Tunku, Karura swears everlasting devotion and fealty to Hakuoro, the most sacred vow one of her kind can make. Her brother, Derihourai, becomes the new emperor of Karurauatsuurei (named after Karura), the new name she gives Na-Tunku after the slave's revolt succeeds.
Lt. Commander Yuriko Star is another by-the-book officer. Yuriko joined the UPSF to give her life structure and attepts to obey the rules in almost every situation. However, she, unlike Yamamoto, has no problem telling Tylor that he has done something wrong and will even resort to slapping him when he gets too far out of line. Yuriko also tries to downplay her gender, making herself a soldier first, and then a woman. This is a sore subject for her when someone comments about Tylor's obvious attraction to her looks, pointing out that she has never used her appearance to get ahead; an equally sore point for her is her budding attraction to him. Yuriko is one of the most rational and level-headed officers on the Soyokaze. While she is senior to Yamamoto, her speciality as an intelligence officer places her outside the chain of command.
Justy Ueki Tylor joins the United Planets Space Force hoping for an easy ride through life but with the devil's luck becomes a hero. He is soon promoted Lieutenant Commander and Captain of Soyokaze. Tylor is a irresponsible laid back captain that can always find his way out of trouble unscathed. Tylor normally allows his crew to "bend" the rules such as letting the surgeon drink while on duty. Throughout the ranks it is argued that Tylor is either the most brilliant military mind or just a lucky bafoon.
Hakuoro is the main protagonist who wears an irremovable mask over the top part of his head extended down to just under the eyes. He is found badly injured by Eruruu, who nurses him back to health. It is soon apparent that he has lost all of his memories, and he additionally finds that the state of the world varies significantly from his expectations (e.g. certain anatomical attributes are now considered normal, such as ears and tails). In place of his forgotten name, he is given the name Hakuoro (白皇, meaning "White Emperor" in Ainu, also the name of Eruruu and Aruruu's father). His main weapon of choice is a large metal fan that was given to him by Tusukuru. He quickly captivates and gains the trust of those around him, and soon finds himself in a growing position of leadership. Major SpoilersAlthough it seems for a time that his identity is Rakshain, a murderous traitor, it is eventually revealed that he is the embodiment of the good half of the god Witsarunemitea and he recalls his memories as Iceman. After Hakuoro's final battle with the darker half of Witsarunemitea, the halves join together once again, with Hakuoro's side straining to maintain dominance. He decides to seal himself away so that his other side will not cause anymore destruction, and bids farewell to each of his comrades. Eruruu confesses her love for Hakuoro and the two share a kiss. Hakuoro says that he will return back to her and Eruruu says that she will wait for him. The conclusion hints that Hakuoro returns through the final scene with Eruruu, though not really seen. Other Names: Iceman/Witsarunemitea In the earliest of Hakuoro's memories, he is seen as an archeological research scholar who stumbled upon Witsarunemitea's fossil hidden in an advanced laboratory. An unknown scientist catches him and explains that he did not want anyone to know of this forgotten deity; the "missing link" in human evolution-- for he felt that it should not exist. To protect its concealment, he shot the archeologist and his blood landed on the fossil. Witsarunemitea then awakened and restored him in exchange for taking his body as a vessel so that he will not be disturbed again. As a symbol of the contract, he acquired the mask which represents Witsarunemitea. Much later, his frozen body is found by researchers who unfreeze him and name him 'Iceman.' Although initially under the pretense of helping him, the researchers were actually interested in researching his ability to survive outside of a greenhouse environment and interested in further increasing their longevity. Artificial beings based from his body were created for further studies, including subject #3510 whom he named "Mikoto" and #63 whom he named "Mutsumi." Iceman fell in love with Mikoto and later on escaped with her and had a child with her; although they're both eventually recaptured. The scientists dissected Mikoto to experiment on her, which caused Iceman to go into a rage and awaken his abilities as Witsarunemitea. Realizing what he is doing, he asks Mutsumi to destroy him; but she is unsuccessful. Instead, she manages to seal him, but he is separated into two: Hakuoro possessing his good side and his human form; and a formless evil side that must possess a host body to gain physical form. However, the seal cannot hold them forever and the two halves periodically become free. In the current time, Hakuoro awakens with no memories, and the latest of the forms taken by the darker side is that of the Onkamiyamukai scholar Dii.
The Director General of Space Patrol's Ogikubo branch. He has a strong sense of justice, to the point that his many catchphrases include the word "Justice." Although he talks big, he acts little, often relying on other characters, especially his secretary. He also jumps to conclusions, as seen when he repeatedly arrests and frees Luluco in the first episode.
He is almost always seen sitting at his desk and gesturing with his extended index and middle fingers in the shape of a gun. His skeletal body constantly burns with a purple flame, which appears to be a manifestation of his sense of justice.
Kaji is in the same grade as Ayu and Nina, and is also the school idol. He is considered cool and always has a nice smile. All his fans are constantly giving him presents, and he even has admirers from the 3rd grade. However, this is only his outer mask. Kaji is in reality a normal guy who hates being given presents by people he doesn't know. But he is working hard on his "nice person" persona because the girl he likes, Ayu, once told him that's the way she liked him. He becomes closer to Nina after she discovers his deception. He is an introverted person, and doesn't like giving away his real feelings or thoughts. Kaji belongs to the school's baseball club. His best friend is Tsujiai.