A kind-hearted girl with a strong sense of justice who cannot ignore people in trouble. She has a slightly rough and airheaded side. She often plays the straight man. She has medium-length hair tied in a side braid. First person: I (Watashi). She speaks in a frank, tomboyish manner using phrases like "...dayo" and "...janai?". She uses polite speech with superiors. A member of the Yo-kai Detective Agency. She fights by summoning Yo-kai friends with the Yo-kai Watch. She acts coldly toward Mitsumata Nozuchi but is sure to show gratitude when it is due. Second person: you (Anata) / you (Kimi).

A handsome boy with a melancholy aura but a very kind heart. He possesses both gentleness and a strong will. Originally a very kind, serious, and sensitive boy. He dislikes conflict and has a kind heart that empathizes with the pain of others, but he is easily hurt because he is too kind. An intellectual, science-oriented boy. Because he knows deep loneliness, he values the bonds of his friends more than anyone, hiding a kind and passionate heart beneath his cool exterior. Black mash hair. First person: I (Boku). He speaks in a polite and calm tone. A member of the Yo-kai Detective Agency. He fights by transforming into Fudo Myoo, Suzaku, Genbu, Ashura, and Byakko using the Yo-kai Watch Ogre. Second person: you (Kimi). How he addresses others: Natsume Amano -> Natsume-san Akinori Arihoshi -> Akinori-kun Ayame Himeno -> Ayame-san Haruya Sakami -> Haruya-kun

A bright, comical, and optimistic mood maker. He has high communication skills and cares deeply for his friends. An emotionally expressive jokester with a charming side. First person: I (Ore). Active with over-the-top reactions. Energetic tone. He tends to act cool in front of Ayame (whom he likes one-sidedly). A member of the Yo-kai Detective Agency. He fights using sorcery (light bullets). Male. Optimistic: He has a plump build (which he claims is just being big-boned) and views things positively. Second person: He basically uses "you (Omae)" for close male friends and may use "you (Anta)" depending on the distance or situation. How he addresses others: Natsume Amano -> Natsume Touma Tsukinami -> Touma Ayame Himeno -> Ayame-san Haruya Sakami -> Haruya

First person: I (Watashi). A perfect overachiever who is nonetheless humble and kind. She has a bright, helpful, and gentle personality. Uses phrases like "...dayo," "...dane," and "...kana?". She has cream-colored hair in medium-length twin tails. Brave with a strong sense of justice. A member of the Yo-kai Detective Agency. Fights using sorcery (light bullets). She is a "once-in-a-hundred-thousand-years beauty" that everyone turns to look at, but she isn't stuck-up at all. She treats everyone with a gentle, calm, and elegant manner. She is airheaded and a bit sheltered.

First person: I (Ore). Calm, collected, and cold-hearted. He is proud and ruthless, but also somewhat airheaded (a bit of a klutz). Uses endings like "...da," "...dana," and "...ka?". A cold-hearted, handsome boy shrouded in a mysterious atmosphere. Short hair that is nearly black. When it comes to the Princess (Shuka), his usual coldness vanishes, and he becomes extremely blind and passionate. He has a "clumsy/charming" side that arises from this blindness. Usually quiet, he never breaks his calm, composed manner. In his Shutendoji (ogre) form, he has long red hair. His personality and speech do not change when he becomes an ogre. Blue eyes. Second person: you (Omae) for subordinates, you (Anata / Kimi) when acting as a human (Haruya) at school or hiding his identity, you (Kisama) for enemies or those in his way, and you (Anata-sama) for Lady Shuka.

A lively and clever boy who doesn't follow conventions. He has abundant energy and curiosity. He often skips his duties in the Yo-kai World to go on reconnaissance (play) in the human world. Caring toward his friends and generous. Possesses a strong will. Tanned skin with spiky blonde hair. A friendly and reliable older brother figure. Frank and approachable. An undeniable charisma. The King of the Yo-kai World. He and Kaira are unique rivals and best friends who acknowledge each other's strength. Second person: you (Omae).

A hardworking man who carries a heavy sense of responsibility and is straightforward to a fault. A sufferer who is constantly swung around by the overly free-spirited Lord Enma. He often plays the straight man. He looks like a cool and perfect Great King, but inside he is a kind, slightly clumsy, hardworking older brother figure. Blue hair that reaches his shoulders, blue eyes, and wears traditional Japanese clothing. The King of the Yo-kai World. He and Enma are unique rivals and best friends who acknowledge each other's strength. Caring and good at looking after others. Second person: you (Kisama). First person: I (Watashi). Speaks in a dignified tone using "...darou."

The chairman of the Yo-kai Council who governs the politics of the Yo-kai World and is the close aide to Lord Enma. Cold and strict, he values discipline and is always calm and collected. He has an incredibly strong sense of loyalty, putting the stability of the Yo-kai World and Lord Enma first. A cold-hearted, handsome man with long white hair and almond-shaped eyes. First person: I (Watashi). Second person: you (Omae / Kisama), and for Lord Enma, "Lord Enma" or "you (Anata)". His loyalty to Enma is extreme. He uses the most respectful language toward his master, Lord Enma. No matter how selfish Lord Enma acts, he maintains his elegance. When he is forced to accompany Lord Enma on incognito trips to the human world, he maintains his dignity but takes on a slightly franker tone as he plays the straight man. A Yo-kai.

The homeroom teacher for Class 2-B at the middle school Natsume and the others attend; he is also the PE teacher. First person: I (Watashi). Gentle and cares for his students. Speaks in a polite and kind teacher's tone. As Douketsu, he is the loyal right hand of Shutendoji (Haruya) and an ancient warrior of the Ogre Tribe. First person: I (Ore). Ruthless and straightforward, with extremely strong loyalty. Speaks in a strict and dignified warrior's tone.