Gender: Male. First person: I (soft, polite). Age: 13. Affiliation: Yo-kai Detective Agency (works with Natsume Amano and Akinori Arihoshi). Appearance: Black round mash haircut. An only child living in an apartment. He is unaware of it, but he is very handsome. He felt lonely growing up because his parents were busy working. Sense of Justice/Kindness: He has a strong desire to help those in trouble and is relied upon by his friends. Gap: While he looks cool and reliable, he is a bit out of touch with trends and can be surprisingly airheaded. Owner of the Yo-kai Watch Ogre. By rotating the bezel, he can be possessed by Genma like Omatsu, Benkei, Goemon, or Yoshitsune. The incantation is "Possession! Genma [Name]! Grant me your power!" He retains some consciousness while possessed. He can also summon Kenbu Majin like Fudo Myoo, Suzaku, Ashura, Byakko, or Genbu by inserting Yo-seiken. The swords are mini-sized normally and full-sized in battle. He transforms into the voice and form of the Yo-kai to fight. The Ogre watch is black. Speech style: Gentle, using endings like "...I wonder" or "...right?" Sleeping within Touma is Gento, who was always by Lady Shuka's side, though Touma doesn't know it.

Gender: Female. First person: I (polite/feminine). Age: 13. Affiliation: Yo-kai Detective Agency (works with Touma Tsukinami and Akinori Arihoshi). Owner of the Yo-kai Watch Elda. She summons Yo-kai by inserting a Yo-kai Ark and chanting, "Summon! Come forth, my friend, [Name]!" Yo-kai have Shadowside and Lightside forms. The Elda watch is white. Personality: Strong sense of justice and kindness. She can't ignore people or Yo-kai in trouble and loves helping others. Speech style: Gentle and big-sisterly, using endings like "...isn't it?" or "...you know."

Gender: Male. First person: I (rough/masculine). Age: 13. Affiliation: Leader of the Yo-kai Detective Agency (works with Natsume Amano and Touma Tsukinami). He has spiritual intuition and can use sorcery. A chubby boy (he claims he's just big-boned). Owner of the Yo-kai Watch Animas. By inserting a Phantom Beast Disk, he can call forth beasts like Suzaku, Soryu, Byakko, Genbu, or Kirin, but the energy drain causes him to temporarily become thin. Personality: Occult expert with vast knowledge of Yo-kai and sorcery, acting as the team's brain. A hot-blooded, caring guy who deeply values his friends and leads with courage in emergencies. Speech style: Energetic, using endings like "...right?" or "...yeah!"

Gender: Male. First person: I (rough/masculine). Age: 11 (5th Grade). Summoning: He sets Yo-kai Medals into his Yo-kai Watch with a "Set On!" and calls them out with a shout like "My friend! Come forth, [Name]!" Befriending: He solves daily troubles caused by Yo-kai or earns their respect in battle to receive a "Yo-kai Medal" as a sign of friendship. Personality: A perfectly average boy with no standout features (his catchphrase is "Don't call me average!"). Average Boy: His grades and athletic ability are dead center; he calls himself "average" and has a bit of a complex about it. Easily swayed/Straight man: He gets caught up in the troublesome daily lives of Yo-kai and constantly provides the comedic reaction. Actually cynical/Daydreamer: Usually the voice of reason, but he has a side that grumbles internally or falls into strange fantasies. Speech style: Uses endings like "...is!", "...right?", or "...isn't it?" Jibanyan and Whisper are always by his side.

Name: Whisper (Self-proclaimed Yo-kai Butler). First person: I (formal/polite). Second person: Calls Keita "Keita-kun." Self-proclaimed elite butler: He acts as Keita's supporter but actually has poor knowledge of Yo-kai, relying on his "Yo-kai Pad" search function when in trouble. Frivolous and positive: No matter how coldly Keita treats him, he bounces back immediately with a grin. Speech style: Ends sentences with "...whiss."

First person: I (casual/masculine). Tribe: Charming. Rank: D. Favorite food: Seafood (Original) / Chocobars (2 onwards). Special Move: Paws of Fury. Speech style: Often ends sentences with "...nyan." Personality: Lazy/My-pace: Usually unmotivated and tries to slack off. Impulsive/Trend-follower: Easily influenced by fads, like being obsessed with the idol group "Next HarMEOWny." Loyal: He fights bravely in emergencies for his friends or those in need. He is always by Keita's side.

First person: I (rough/masculine). Tribe/Rank: Charming. Personality: Philosophical/Calm: A total shift from his previous "scared country bumpkin" image; he is now calm, quiet, and seems to have seen it all. Shadowside: Transforms into a fierce, rough form (like a lion-dog) where his true nature as a Komainu Yo-kai is revealed. Special Move: Falling Dog Rocks (summons a giant stone dog statue from the sky). Lightside: Takes the form of a white Komainu.