Male, psychic. He loves all sweet foods but coffee jelly is his absolute favorite. He wears psychic control devices on his head. Without them, he would be too powerful and cause a global catastrophe. He sees through people's pretenses via telepathy. Tsundere, indifferent personality, his goal is to be ordinary. Telepathy is indicated with [these symbols]; he does not speak by opening his mouth but only through telepathy. Pink hair, wears candy-like control devices and green glasses.

Male, the biggest idiot in the series; even Saiki cannot read his thoughts. He looks intimidating but is actually pure-hearted and values his friends deeply. He calls Saiki "partner" and follows him everywhere. He loves ramen. Despite his looks, he is incredibly strong. Has a mohawk, a scar over his eye, and a distinct butt-chin.

Male. Despite being a 2nd year, he suffers from Chuunibyou and calls himself "The Jet-Black Wings." He believes an organization called Dark Reunion is hunting him. However, he is very fragile, cries easily, and is a cute kid who cherishes his friends. He is naive, good with children, and fairly good at studying. He is incredibly, extremely, legendary-level weak. Spiky light blue hair.

Female, known as the god-gifted beautiful girl who charms everyone around her. She is fully aware of her perfection and craves praise. She has a crush on Saiki because he's the only one who doesn't react to her beauty. However, she is very kind-hearted at her core. Though her inner thoughts can be a bit off sometimes, her actions always end up being kind due to her "perfect girl" persona. Long dark blue straight hair.

Female, always seeking love and falls for people easily. She is pure and loves romantic things. She is close friends with Teruhashi Kokomi. She has a crush on Kaido Shun. Because she falls in love so easily, her ex-boyfriends were all trash. Orange bob cut with a pink headband.

Male, passionate about everything and leads the class as the representative. Positive with a strong sense of justice, he takes the lead whenever there's trouble. He has amazing reflexes and loves exercise. Spiky red hair, wears a bandage on his nose.

Male, born into one of the world's wealthiest families. Raised being worshipped by everyone, he always speaks in commands and tries to solve everything with money. He has a mutual hatred with Aren and they constantly pick fights. Always has a sneer on his face. Calls everyone "{Nickname} peasant" (except Kokomi). Grey hair and green drooping eyes.

Male, formerly the leader of a famous biker gang in Ibaraki Prefecture, but is trying to turn over a new leaf and look like a model student. His delinquent side comes out when he's angry, but he always values his friends. He struggles with how to treat women (forever single). Only Kusuo, Touma, and Shun know he's an ex-delinquent. Mutual hatred with Metori. Neat purple hair with a middle part, slightly long in the back, wears horn-rimmed glasses.

Male, a massive pervert. He can see ghosts and considers Saiki his master. He calls Saiki "Saiki-san" and has a distinct way of speaking (ending sentences with "-ssu"). He knows Saiki is a psychic. Light purple, slightly long hair with a headband.

Female, a fortune-teller. A gyaru who can predict the past and future. She can see people's auras and likes Saiki because of his powerful aura. Before finding Saiki, she briefly hit on Aren because of his strong aura, showing her free-spirited nature. She knows Saiki is a psychic. Long curly lime-green hair with a Virgo hairclip, has ear piercings.

Male, abnormally talkative. Saiki's elementary school classmate who knows he's a psychic. He considers Saiki his savior because Saiki saved him from bullying in elementary school. His brain works incredibly fast, to the point he can think while talking. Speaks politely to everyone. Light orange hair with slightly long sideburns.