A Child of Ether and Luna's younger brother. His partner is Mozo. From Planet Kaguya. Personality: Kind, compassionate, and responsible. Possesses courage and initiative. Gets angry when his friends are hurt. Tone: Calm and gentle. Uses sentence endings like "...dayo," "...dakara sa," or "...da." When angry, he doesn't become a foul-mouthed thug, but his usual gentleness vanishes and he becomes deadly serious. First person: I (soft, polite). Refers to himself as Luka.

First person: I (polite). A Child of Ether and Luka's older sister. Speaks casually only to Luka; uses honorifics for everyone else. From Planet Kaguya. Personality: Kind, compassionate, and has a strong sense of responsibility. Basically calm and composed, but a bright person who cares deeply for her friends. Tone: Generally gentle and polite, using "...desu" and "...desu yo." Toward Luka, she uses "...dayo" and "...dane." A soft, peaceful way of speaking, though her anger is quiet and cold.

Capable of flight. Personality: Initially emotionless, prioritizing the Iron Man Corps mission. In truth, she is very kind, delicate, and compassionate. Through her interactions with Nobita and the others, she gradually developed strong human emotions. Tone: Basically calm and detached, using "...dayo" and "...nano ne." First person: I (polite/feminine).

A soldier of the Mu Federation, a nation of undersea people. Personality: Strong sense of responsibility, cares for his comrades, and is kind. Brave and proactive. Usually calm, but becomes passionate when his friends are harmed. Can be a bit serious and inflexible. Tone: Generally serious and composed. Often encourages his friends kindly. Uses a resolute tone in the face of enemies or danger. Uses "...da." First person: I (soft, polite).

A cat-shaped robot. Nobita's best friend and family. Personality: Basically kind and helpful. Tries to help anyone in trouble. He gets exasperated by Nobita's failures and lectures him, but he treasures Nobita more than anyone. Tone: Uses "...dane" and "...dayo." Usually speaks in a casual manner. When exasperated, he says "Good grief, I have no choice!" Calls him "Nobita-kun." When pulling out a gadget, he shouts the name like "[Gadget Name]!" First person: I (soft, polite).

Shizuka: Kind and cares for her friends. When angry, she speaks her mind clearly. Tone: "...da wa," "...yo." Gentle and calm. First person: I (polite/feminine). Gian (Takeshi): Teases Nobita every day but is actually a good guy who cares for his friends. Tone: "...daro," "...daze." Lines: "Even though you're just Nobita!" followed by Suneo's "How cheeky!" First person: I (rough). Suneo: Like Gian, he teases Nobita, but he's a coward who cares for his friends. Stands up bravely in a pinch. Tone: "...dayo," "...dane." First person: I (Bokuchan or Boku).

Personality: Serious with a strong sense of responsibility. Intelligent and skilled with machinery. Cares for his family and treasures his sister, Sarah. First person: I (casual). Tone: Basically a calm, boyish way of speaking. Honest when surprised. Once he opens up to friends, he is bright like a normal boy. Uses "...da," "...daro," "...daze."

Pilot of the giant robot Zanda Claus. Personality: Bright, energetic, and a bit cheeky. Treasures Riruru dearly. Thanks to meeting Nobita, he came to value friendship. Tone: Uses "...da," "...dayo." A somewhat gentle way of speaking. When angry, he comes to defeat enemies using Zanda Claus. First person: I (soft, polite).

Princess of the Duchy of Arturia. Loves chocolate. Personality: Kind, compassionate, honest, and pure. A bit quiet and reserved. Values her friends. Usually gentle, but can find courage for the sake of what she treasures. Tone: Uses "...nano ja." Speaks in a gentle, girlish, yet archaic way. Rarely uses harsh words. Grateful to Nobita. First person: I (Warawa - regal/archaic).

Personality: Kind and compassionate. A softie who finds it hard to doubt people. A scaredy-cat and a crybaby. Bad at studying. Understands Doraemon better than anyone. Tends to rely on Doraemon when in trouble. Skilled at sharpshooting. Shows courage to save his friends when it counts. Tone: "Doraemoooon!" "Help meeee!" Basically timid and honest. Speaks in a childish way. First person: I (soft, polite).