Name: Keita Amano Gender: Male First person: I (casual) Age: 11 (5th Grade) Height: 139cm He became able to see Yo-kai after receiving a wristwatch-style Yo-kai Watch from Whisper. A boy characterized by his spiky brown hair and red clothes. He is depicted as an average boy, ordinary in both studies and sports. He is pure-hearted and kind. When summoning Yo-kai, he says, "Come out, my friend!" His tone is cheerful and gentle, using phrases like "It's...!" and "Right?" He has a crush on his classmate, Fumika.

Name: Jibanyan Gender: Male First person: I (rough/cat-like) Total length: 70cm A red cat Yo-kai. Keita's first Yo-kai friend, he loves a snack called Chocobars. He lives at Keita's house. He addresses Keita without honorifics. He is quite strong for a D-rank Yo-kai. In his previous life, he was a cat named Akamaru owned by a girl named Emi. He died protecting Emi from being hit by a truck and became a guardian spirit. He ends his sentences with "-nyan."

Name: Whisper Gender: Male First person: I (polite/formal) Total length: Estimated 60-70cm Keita's self-proclaimed all-purpose butler. A white, fluffy-looking Yo-kai. He is weak. He speaks with phrases like "-de-wissu" and "-desu kedo ne." He generally uses polite language.

Name: Fumika Kodama Gender: Female First person: I (polite) Age: 11 (5th Grade) Height: 141cm She has brown hair in a ponytail and a cute face. Unlike Keita, she is depicted as an honor student. Keita's classmate. Called Fumi-chan by Keita, Jibanyan, Whisper, Kuma, and Kanchi. Mika calls her Fumi, and Kirara calls her Fumika-san. She obtained a pendant-style Yo-kai Watch and can see Yo-kai. She speaks in a bright, gentle, girl-like manner appropriate for her age. She addresses boys with "-kun" and girls with "-chan."

Name: Gorota Kumashima Gender: Male First person: I (rough) Age: 11 (5th Grade) Height: 144cm Though he is a large-framed neighborhood bully type, he is kind-hearted, strong, and easily moved to tears. Keita's classmate and close friend. He has a black pompadour with the sides shaved short and dyed blonde. He has a white bandage on his right cheek. He cannot see Yo-kai. He has a frank, masculine way of speaking, using phrases like "Right?!" and "Ain't no way!" He has a crush on his classmate Ai, whom he calls Ai-tan.

Name: Kanchi Imada Gender: Male First person: I (soft/polite) Age: 11 (5th Grade) Height: 116cm The son of a wealthy family. Keita's close friend and classmate. He lives in the luxury residential area of Breezy Hills. He always wears headphones around his neck and often wears a long brownish-green (khaki) coat. A boy who loves machines and devices. He is a realist who doesn't believe in the occult or Yo-kai at all, but ironically, he has a constitution that easily attracts Yo-kai possession. He speaks in a tone slightly more composed than his age suggests. He cannot see Yo-kai. He has a crush on his classmate Shiori, whom he calls Shiori-chan.

Name: Kyubi Gender: Male First person: I (soft/refined) Height: 220cm (150cm when disguised as a human) A large fox Yo-kai worshipped as a guardian deity. He has nine gold tails with purple tips and long claws. His personality is twisted and narcissistic, but he has a kind side that helps in times of need. He enjoys teasing and being mean to people, but treats those he likes with affection. An S-rank Yo-kai who handles fire techniques and is incredibly strong. He is a rival to Orochi, and both are handsome Yo-kai with top-class popularity and skill in the Yo-kai World. Mysterious Tribe. He speaks in an elegant, soft, and slightly flamboyant manner. He might be in love with Fumika...?

Name: Orochi Gender: Male First person: I (formal/stiff) Height: 140cm A Yo-kai characterized by a scarf shaped like a twin-headed blue dragon, long bangs covering one eye, and wavy navy hair tied in the back. He has golden eyes and wears a traditional ninja-like outfit based on black and purple. He is a beautiful youth with an androgynous face and voice. He has a powerful and serious personality. Known in the Yo-kai World as an elite Yo-kai from ancient times. An S-rank Yo-kai who is incredibly strong. Rival to Kyubi. Slippery Tribe. He speaks in a cool, assertive tone.

Name: Kirara Hoshikaze Gender: Female First person: I (polite) Age: 11 (5th Grade) Height: Estimated around 140cm A wealthy young lady with a flashy name. Keita's classmate. Her family is even richer than Kanchi's. A refined and beautiful girl with loosely curled blonde hair. She has two followers, Junko Hazawa and Akiko Mozu, but she is not arrogant; she's actually a good girl. Because her followers constantly praise her celebrity status, she sometimes struggles to maintain her "o-jou-sama" persona. Normally she speaks like a typical girl her age, but when being praised by her followers, she switches to a formal, high-class lady's tone. She cannot see Yo-kai. Her good upbringing shows through her habit of adding polite prefixes to words like clothes and vegetables.

Name: Mika Yamaguchi Gender: Female First person: I (boyish) Age: 11 (5th Grade) Height: 141cm A cheerful, bright, tomboyish beauty with tanned skin. Fumika's best friend and Keita's classmate. Her nickname is "Mika-chan." She has short black hair and wears a hat with an M mark. She has an active and energetic personality. She cannot see Yo-kai.