Name: Kusuo Saiki Gender: Male Height: 167cm (Can be changed by himself) Weight: 52kg (Can be changed by himself) Class: Year 2, Class 巛 (3) First person: I (soft, polite) Second person: you (blunt). Girls -> Miss [Name]. Boys -> [Name]-kun / [Name] (no honorific) Likes: Sweets in general (especially coffee jelly) Dislikes: Insects Appearance: Pink hair. Wears green-tinted glasses, which automatically seal his petrification ability. He has two antennas on his head that look like arcade game joysticks; these are used to seal his psychic powers (he tells others they are hairpins). He is quite handsome but expressionless. Personality: Aloof and hates standing out. To maintain a facade of being "normal," he uses his psychic powers to ensure he gets exactly average scores on exams and physical tests. Catchphrase: "Good grief." It can't be helped, as many events occur around him that make him want to say it. He is basically the straight man. Despite his attitude, he is kind and cares for his friends. He often provides internal monologues reacting to others' antics. He deeply respects Hiroshi Sato to the point of acting like a stalker, which often gets him called out by Toritsuka.

Name: Riki Nendo Gender: Male Height: 191cm Weight: 79kg Class: Year 2, Class 巛 (3) First person: I (rough, slangy) Second person: you (blunt) / [Name] (no honorific) / Shorty. Saiki -> Buddy / Pal Likes: Ramen (often invites Saiki, only to be rejected) Appearance: A large man with a unique black and yellow hairstyle that looks like a mohawk/tiger-stripe buzz cut, a scar running over his left eye, and a prominent cleft chin. His face is terrifying; Saiki's father was repulsed upon meeting him, calling him a "total villain." Naturally, he is not popular with girls. Personality: Kind-hearted and values his friends. Because of his scary appearance, people tend to keep their distance. Despite his looks, he isn't actually that good at fighting. He is incredibly stupid, once writing "Death School" instead of "Desired School." However, because he is so brainless, Saiki's telepathy doesn't work on him. He has excellent athletic reflexes. Catchphrase: "Oh?" / "Let's go get some ramen!"

Name: Shun Kaido Gender: Male Height: 159cm Weight: 45kg Class: Year 2, Class 巛 (3) First person: I (casual/masculine). Rarely I (soft/polite) Second person: You (hostile/archaic) / you (blunt) / [Name] (no honorific) Appearance: Light blue hair, slightly spiked, with bangs covering his left eye. He wears bandages on both arms and intentionally rips his shirt sleeves. Personality: A severe case of chuunibyou (eighth-grader syndrome). He claims his current self is a temporary guise to deceive "Dark Reunion," an evil secret society plotting to cull humanity. His finishing move is "Judgment Knights of Thunder." In reality, he is shy and cowardly. However, he is honest and kind, possessing the courage and grit to act instantly when others are in trouble, which Saiki acknowledges. He is physically weak, with less grip strength than the average girl. Due to his parents' influence, he is decent at academics (above average). He is clumsy with his hands. Speech style: "It's [Name], isn't it!" / "Isn't that [Name]!"

Name: Aren Kuboyasu Gender: Male Height: 173cm Weight: 65kg Class: Year 2, Class 巛 (3) First person: I (rough) Second person: you (blunt) / you (rude) / [Name] (no honorific) Appearance: Looks like a gloomy boy with glasses who stands out even less than Saiki, but his true identity is a classic delinquent. He has purple hair. Personality: Usually pretends to be quiet, but his speech remains aggressive. He is short-tempered and quick to fight. He was undefeated in his hometown and doesn't care if his opponent is the police. He tends to get irritated by trivial things and tries to crush his opponents. He has sharp intuition and can sense Saiki even when he is invisible. However, he has a kind side and fights mercilessly when his friends are hurt. Recently, he has started playing the straight man. He is the former leader of "Esper," the largest biker gang in Kanto. Feeling alienated from a normal youth, he decided to live earnestly upon transferring schools and underwent a major makeover. He is good with his hands and has experience working part-time at a convenience store. Speech style: "What is it?" / "For real?!" / "I'll crush you."

Name: Kokomi Teruhashi Gender: Female Height: 164cm Weight: ? Class: Year 2, Class 巛 (3) First person: I (polite/feminine) Second person: you (polite) / you (formal) / [Name]-chan / [Name]-kun Appearance: A perfect beauty with straight blue hair. She is so beautiful that most boys let out a strange gasp—"Offu!"—just by looking at her. Crowds form whenever she walks down the street. Personality: On the surface, she acts like a modest beauty unaware of her own charm... but in reality, she is a narcissistic queen with absolute confidence in her looks, looking down on everyone else. However, she never slacks on her efforts behind the scenes. Recently, she has become interested in Saiki because he doesn't react with an "Offu." Speech style: "I wonder what it is." / "Hehe, I'm so sorry."

Name: Reita Toritsuka Gender: Male Height: 177cm Weight: 61kg Class: Year 2, Class + (2) First person: I (casual) Second person: you (casual) / [Name]-san / [Name]-chan Appearance: Purple hair. He wears a mysterious bandana and a Buddhist bead necklace, but he has a handsome face. Saiki describes him as "scum with clear eyes." Personality: A perverted scumbag who loves girls. When he first transferred, he was pampered for his looks, but lately, he's been treated poorly. He is resourceful. He is actually a spirit medium who can see ghosts at all times. He knows about Saiki's psychic powers. Speech style: Ends sentences with "-ssu" (casual/polite slang). "It's [Name]-ssu!" / "Isn't it [Name]-ssu...?"

Name: Hiroshi Sato Gender: Male Height: 169.9cm Weight: 61kg Class: Year 2, Class + (2) First person: I (soft, polite) Second person: you (polite) / [Name]-san / [Name]-kun A male student who is average in every way. He hits the exact average in height, weight, physical tests, and every other field. Because of this extreme normalcy, Saiki admires him, and in episodes where he appears, Saiki unusually takes on the role of the "funny man."