The King who rules the Yo-kai World where the Yo-kai live!

A high-ranking Yo-kai of the Yo-kai World who lives while assisting Lord Enma!

The owner of the Yo-kai Watch Elder! A girl who exterminates Yo-kai.

Yoon Dan-ah's younger brother. He has a timid personality and does not believe in things like Yo-kai or ghosts!

The owner of the Yo-kai Watch Ogre! Yoon Dan-ah's best friend! If anything happens, he protects his friends!

The owner of the Yo-kai Watch Animas! He can summon Phantom Beasts with the Yo-kai Watch Animas. He can use magic and Taoist arts, and possesses the power to see Yo-kai... If there is a Yo-kai incident?! He goes out to exterminate them!

A friend who transferred to the school attended by Dan-ah, Do-young, and Yu-seong! She joined the Yo-kai Detective Agency to exterminate Yo-kai together!

The butler Yo-kai!

A total of 5 Yo-kai Swords?! The 5 Kenbumashin sleeping within the Yo-kai Swords! Fudo Myo-oh: Slashes the opponent with the power of lightning! Suzaku: Can split the sword into two to create dual blades! Genbu: An axe that can cut through anything! Kongoyasha: A sword with the power of fire! Byakko: Defeats enemies in an instant with incredible speed!

The 4 Genma sleeping within the Yo-kai Watch Ogre! 12 o'clock: Rokudoryu: Slashes enemies with six swords! 3 o'clock: Songhwa: A Genma with healing abilities! 6 o'clock: Chanawang: A Genma with deductive reasoning powers! 9 o'clock: Su-beopsa: A Genma with high defense!