; : :Conan is a fearless 11-year-old boy who was born on Remnant Island and raised by all survivors of a failed escape attempt into space from the Great Disaster. Conan is very attuned to his rural, secluded lifestyle, where he has grown up mainly in the company of the oldest surviving crew member, his adoptive grandfather. Conan is inexperienced but an intelligent, strong, and exceptional athlete,
underwater swimmer, and spear-fisher. Despite his lack of social exposure, he is gentle and can quickly integrate among strangers. Deciding to rescue Lana in a self-constructed
sailboat after his grandfather's killing and Lana's subsequent capture, Conan meets new friends and acquaintances while becoming caught up in Lepka's plots for Industria and High Harbor. ; : :Lana is a quiet, soft-spoken girl from High Harbor and the granddaughter of Dr. Lao, to whom she is very devoted. Lana, who is also 11 years old, is found by Conan as she washed up unconscious on the shore of Remnant Island. She is the first girl, or person altogether beside his grandfather, whom the boy has ever seen. His initial curiosity and infatuation gradually develop into deeper feelings and reciprocal desire to stay together, no matter risks and adversities. Lana appears to also have some
telepathic connection with her grandfather Dr. Rao, and to some extent also with birds and in particular a
tern named Tikki. As her affection for Conan grows, a similar empathic bond also begins to form with the boy. ; : :Jimsy is a semi-feral boy living alone on the first island Conan arrives at, Jimsy quickly becomes Conan's first friend, helping him rescue Lana. Jimsy is a master hunter (with a particular preference for grilled frogs and lizards), proficient in hunting with his bow and able to compete with Conan in other athletic skills almost to a draw. He has a good but rather hedonistic and wild nature, which tends to place him in troubles as he attempts to steal food, liquor and surrogate cigarettes. Jimsy ends up spending most of his time with Dyce after Conan and Lana are separated from the party. Initially, Jimsy has a negative view on women, but he gradually forms a relationship with Tera at the end of the series. ; : :The head of administration of Industria, Lepka technically serves under the Industria High Committee, a group of benevolent but old and naive scientists. Over the course of the series he becomes increasingly tyrannical and eventually stages a coup to become the sole dictator of Industria. He is the primary
antagonist, cruel even with his loyal accomplices and always greedy for power, even attempting to restore a war-time superweapon to rule over what remains of the world. ; : :The grandfather of Lana, and the scientist responsible for the development of solar power for both civil and wartime usage. Originally a member of Industria's High Council, he defected after he learned of Lepka's power-driven ambitions, and hid under the cover identity of a hard-handed salvaging crew captain named Patch. He believes that the people of Industria must be taught to discard their weapons and begin new lives in peace. For this reason he escaped, bringing with him the secret of how to access the last orbiting solar power station from pre-war times. ; : :The young assistant director of Industria's Administration forces. As a young girl, she was her family's only survivor when the final war broke out and the Earth was devastated; and as a result of that tragedy, she became a harsh, uncaring enforcer. She is tasked by Lepka to capture Lana, and eventually leads the invasion of Industria against High Harbor. However, as she encounters Conan, she is gradually swayed by his unwavering courage and sincerity, and eventually joins him and his friends in taking down Lepka. ; : :Dyce is a citizen of Industria, and the captain of the plastic-salvaging ship
Barracuda. He was originally ordered to track down Dr. Briac Lao, Lana's grandfather, and convey the girl to Industria, but ended up developing an affection for Lana, enabling her to escape to Remnant Island. Fed up with Lepka's cruelty towards Lana, he eventually becomes one of Conan's allies, helping to overthrow Industria's regime in their exploits. He is a comically inept character, and often makes it out alive only by pure luck in his fights with Industria's forces. ; : :The leader of an underground cell composed of Industria's lower-class/slave citizenry. He is an old ally of Dr. Lao in the latter's attempts to improve the lives of the city's downtrodden people, and was repeatedly arrested and charged and even branded for rebellion. During one stint in prison, he and his compatriots are freed by Conan and in turn aid him and his friends in navigating the underground city beneath Industria's Triangle Tower, which is riddled with secret passages only the resistance knows about. ; : :Orlo is the young, rebellious leader of a rogue gang based in the mountains of High Harbor, who
tax whoever the gang catches crossing their territory. He originates from a village of herders on the other side of High Harbor island, but turned into a bullying outlaw after he found honest work to be unsatisfactory. He plots to become the leader of High Harbor, thus cooperates with the Industrians when they invade the island, bringing down the villager's defenses. However, when a tidal wave hits the island and the Industrians subsequently surrender, his plans are permanently dashed. In the end, he finds his place back among his fellow islanders. ; : :Orlo's younger sister, about the same age as Conan and Jimsy, and the deputy leader of Orlo's men. She and Jimsy quickly take a liking to each other, but their radically diverging views of life prevent them from reaching a common ground at first. During the Industrian invasion of High Harbor, she is rescued by Jimsy and Conan, which breaks down the barrier between them, and they become a couple. ; : :Conan's adoptive and elderly grandfather, who raised him on Remnant Island. Originally part of a crew of people escaping from the largely destroyed Earth, their spaceship crashed back down, miraculously landing on Remnant Island, with all the members surviving, including Conan's grandfather. With every other crew member dying soon after Conan's birth, he was left to raise Conan alone for 11 years, taking him as his adopted grandson. However, after being attacked by Industrian soldiers during Lana's abduction, he dies from his injuries. In the later course of his adventures, however, Conan encounters an Industrian low-class citizen who bears a striking resemblance to his grandfather. ; :Umasō is Jimsy's pet piglet which he acquired after becoming a pig herder on High Harbor Island. ; : :Kuzo is one of Monsley's subordinates. ; : ; : ; : ==Production==