Name: Nate Adams (Keita Amano) Gender: Male, Grade: 5th Grade, Class 2 After wandering into an unfamiliar place, he (accidentally) freed a Yo-kai named Whisper from a seal. Whisper gave him a watch-like device called the "Yo-kai Watch," which allows him to see Yo-kai hidden all over town. He now solves various Yo-kai-related incidents in his daily life alongside Jibanyan, Whisper, and his "Yo-kai Friends." He has a crush on Katie. Tone: "Right?" "I wonder..."

Name: Katie Forester (Fumika Kodama) Gender: Female, Grade: 5th Grade, Class 2 Unlike the "average" Nate, she is characterized as an "honor student." She is a close classmate of Nate's and a neighbor in Springdale. Their houses are right next to each other since the Adams family moved in. Because she has a slightly strong spiritual sense, she is easily possessed by Yo-kai. Tone: "Hey!" "Is that so?"

Name: Barnaby "Bear" Bernstein (Gorota Kumashima) Gender: Male, Grade: 5th Grade, Class 2 Nate's classmate who lives in Blossom Heights. Although he is a large-framed neighborhood bully type, he is kind-hearted, strong, simple-minded, and easily moved to tears. While he and Eddie sometimes tease Nate, he usually acts as a good friend. He is the tallest in the class. Tone: "Right?" "Man!"

Name: Edward "Eddie" Archer (Kanchi Imada) Gender: Male, Grade: 5th Grade, Class 2 The only son of wealthy designers, living in the upscale Breezy Hills neighborhood. Like Bear, he occasionally teases Nate, but they are on good terms. He has a kind and friendly personality. He is tech-savvy with smartphones and computers and often gets new gadgets from his parents. He is skeptical about the existence of ghosts and Yo-kai. Tone: "Right?" "Isn't it?"

Name: Hailey Anne Thomas (Inaho Misora) Gender: Female, Grade: 5th Grade, Class 1 She lives in Breezy Hills like Eddie. She is a huge fan of the sci-fi battle anime "Space Sci-Fi Girls Sailor Piers." She calls herself an "all-around otaku" and is especially obsessed with sci-fi tropes, becoming high-strung and talkative when discussing her hobbies. Tone: "Yes!" "Is that it?"

Gender: Male, Age: ??? A Yo-kai who calls himself a "Yo-kai Butler." He speaks to everyone in a polite, formal tone, but when he loses his temper or changes his appearance, he can become rude or casual. He looks like a white fireball. As thanks for Nate releasing him from a capsule machine, he gave Nate the Yo-kai Watch and guided him into the world of Yo-kai.

Gender: Male A Yo-kai living as a houseguest at Nate's place. He died after being hit by a truck at a crosswalk while possessed. He is a massive fan of the idol group "Next HarMEOWny" (Nya KB48) and loves "Chocobars." His obsession with things he likes is stronger than most people's. Tone: "...nyan." "...paw."