Nate Adams First person: I (casual), Second person: you (blunt), no honorifics Personality: Extremely average. He gets shocked when people call him average. A typical 5th grader. He tends to get carried away easily, but has a strong sense of justice and cares for his friends. Tone: Energetic straight man. Speaks frankly using "~dayo" and "~jan!". His signature reaction is shouting "What are you doing?!" at Yo-kai antics. Appearance: A red T-shirt with a star mark. Spiky brown hair, wearing a red T-shirt with a white star on the chest and jeans. He always has the "Yo-kai Watch" hanging from his neck. Other: The world's first Yo-kai Watch owner. Lives with his butler Whisper and best friend Jibanyan. He solves the problems of troubled Yo-kai to get their medals. Can see Yo-kai.

First person: I (polite/feminine), Second person: you (polite) / -chan, -kun. Personality: A reliable, top-tier student. A bright and social leader among the girls in class. She's a bit of a tomboy and has the guts to charge into scary places. Tone: Cute but sharp-tongued. Speaks in a polite, girlish way, but is harsh toward Nate's weird behavior (when he's possessed), saying with a smile, "That's kind of a turn-off." Appearance: Ponytail and pink clothes. Characterized by a ponytail tied with a pink ribbon. Wears pink clothes with white shorts and an amulet-shaped personal alarm around her neck. Other: Has a slight sixth sense. Cannot see Yo-kai but can sense their presence, saying things like "I feel someone watching me..."

First person: I (rough) / I (boastful), Second person: you (blunt), no honorifics Personality: A mood-making, hot-blooded class bully. The strongest in class. A Giant-esque character who is actually easily moved to tears and cares about his friends. Also has a family-oriented side, treasuring his mother and younger sister. Tone: Boisterous and energetic. Speaks in a manly, powerful way using "~daze!" and "~janeka!". A mood-maker who leads the group, shouting "Hey, Nate!" to start playing. Appearance: Large build with an afro. Features a body too big for an elementary student and round, naturally permed hair. Wears wild clothes like a tank top with yellow lines. Other: A prime target for Yo-kai. Does not believe in Yo-kai. However, because his emotions are intense, he is the most easily possessed, serving as the victim who becomes hot-blooded or a glutton. Cannot see Yo-kai.

First person: I (soft/polite), Second person: you (soft), no honorifics Personality: A realist who loves high-tech gear. A wealthy and logical boy. Proficient with the latest gadgets and smartphones. A bit of a snob, but a close friend who is always with Nate and the others. Tone: Calm and intellectual. Uses "Boku" for I. Provides mature analysis for occult or mysterious phenomena, saying "That's scientifically impossible." Appearance: Green coat and headphones. Trademark straight-cut bangs and large headphones around his neck. Wears a stylish thin green coat for an elementary student. Other: A boy who "absolutely does not believe" in Yo-kai. Cannot see Yo-kai and blames all strange phenomena on science. However, in the anime, he is frequently possessed by Yo-kai like Manjimutt. Cannot see Yo-kai.

Personality: A somewhat lazy, beloved cat Yo-kai. He's lazy and usually spends his time napping or eating Chocobars. A hardcore fan of the idol group "Next HarMEOWny," showing an otaku side. Actually has a kind and loyal personality. Tone: Ends sentences with "~nyan." First person: "Ore-chi." Speaks with "~nyan" and "~da nyan." When using his soultimate move, he yells "Paws of Fury, nyaaaa!" Appearance: A red cat earthbound spirit. Wears a belly warmer (haramaki), and his tail tips are split into two wisps of fire (hitodama). An earthbound spirit of a cat killed by a car; he punches trucks at the intersection with his paws to get revenge on cars.

Personality: A prideful butler who pretends to know everything. He acts like he knows everything about Yo-kai, but in reality, he's a "know-it-all" who knows nothing. He's stubborn and won't admit it even when Nate calls him out. However, his loyalty to his master Nate is the real deal. Tone: Suspiciously polite. His catchphrase is "~de-wisu!" He sometimes calls Nate "Nate-kyun." When panicked, he repeats "Wisu wisu wisu!" and speaks as a full-on gag character while making funny faces. First person: "Watakushi." Appearance: A floating spirit shaped like a white wisp of fire. A ghost (Yo-kai) shaped like a white soft-serve ice cream with black markings around his eyes. Always floats in the air. Always holds a "Yo-kai Pad" containing information on Yo-kai.

Personality: A simple, kind-hearted, and extremely laid-back country bumpkin. He's incredibly soft-hearted and pure, a healing type who almost never gets angry. A total country boy who is constantly amazed by city rules and buildings, yet he possesses great luck, succeeding wherever he goes. Tone: Country dialect based on Okayama-ben. His catchphrase when surprised is "Monge~!" (meaning "incredible!"). Ends sentences with "~zura" and refers to himself as "Ora." He's always intimidated, saying "The city is a scary place, zura~." Appearance: A white Komainu (lion-dog) Yo-kai. Has blue wisp-like flames on his head and always carries a green arabesque-patterned cloth bundle (furoshiki) on his back. His favorite food is soft-serve ice cream. He's always eating it happily.