A girl from the Duchy of Artoria, the country depicted in the painting. She is characterized by mysterious eyes resembling "Artoria Blue" and long yellow hair. She refers to herself as "warawa" and speaks in an archaic, regal style (using "ja" and "karou"). She has a tomboyish and brave personality.

A boy who is good at neither studying nor sports. He is kinder than anyone else. He has a crush on Shizuka.

A blue cat-type robot. However, he has no ears because they were bitten off by a mouse. Nobita's friend. He has a spherical head and torso with short limbs. He has a two-tone color scheme: blue body with a white face and belly. The tip of his nose and tail are red. Due to his appearance, he is often mistaken for a raccoon dog by people meeting him for the first time, which makes him furious every time. He produces gadgets from his Four-Dimensional Pocket. First person: I (soft, polite). He lives with Nobita.

He usually bullies Nobita along with Gian. He cries when he falls into a predicament despite his bragging.

A neighborhood bully who is confident in his physical strength. He is deeply emotional and values friendship highly.

She can produce and manipulate water from her fingertips, capable of shooting through things like a water pistol. She loves taking baths.

A 10-year-old boy with flaxen hair living in the Duchy of Artoria who is skilled at painting. He is Claire's childhood friend. Born into a family of court painters for Artoria Castle. While he resides within the castle, he also keeps an atelier by the shores of Lake Artoria.

A mischievous little demon (bat-like) who loves chocolate. Often seen with Claire. [Appearance] An adorable bat-like figure with large ears and small wings on its back. [Personality] A jokester who loves surprising humans. On the other hand, he has a loyal side, being close friends with Princess Claire, and a cute side where he loves chocolate more than anything.

A young man dressed in purple clothes with purple hair. An art merchant in the Duchy of Artoria who frequents the castle to buy and sell paintings. His true identity is a Time Patrol agent. He is briefly detained by Doraemon and the others out of suspicion, but they eventually reconcile. He is gentle and clumsy.