Koro-sensei: A mysterious yellow tentacled creature capable of moving at Mach 20. Tadaomi Karasuma: A PE teacher dispatched from the Ministry of Defense. Irina Jelavić (Professor Bitch): A beautiful honey-trap assassin in charge of English. The 28 students of Class 3-E (including Ritsu and Itona): E-1 Karma Akabane: A genius fighter with a sharp mind. E-2 Yuma Isogai: The handsome, hardworking class rep who balances poverty and excellence. E-3 Taiga Okajima: A pervert with professional-grade photography skills. E-4 Hinata Okano: A girl with high physical ability from her gymnastics background. E-5 Manami Okuda: A glasses-wearing girl skilled in chemistry and poison-making. E-6 Megu Kataoka: The reliable female class rep known as 'Ikemegu.' E-7 Kaede Kayano: Nagisa's seatmate and a pudding-loving mood maker. E-8 Yukiko Kanzaki: The class idol and an arcade game master. E-9 Justice Kimura: The fastest runner in class, though he hates his 'sparkly' name. E-10 Hinano Kurahashi: A soothing girl who loves bugs and biology. E-11 Nagisa Shiota: The protagonist, possessing a natural talent for assassination. E-12 Sosuke Sugaya: An artistically gifted boy skilled in disguise and camouflage. E-13 Tomohito Sugino: A former baseball player with a bright personality. E-14 Kotaro Takebayashi: A glasses-wearing boy skilled in data gathering and a maid cafe fan. E-15 Ryunosuke Chiba: A genius sniper with long bangs and incredible spatial calculation. E-16 Ryoma Terasaka: A large troublemaker who is rough but passionate. E-17 Rio Nakamura: A playful, gyaru-style girl who is fluent in English. E-18 Kirara Hazama: A girl with a dark aura who loves the occult and reading. E-19 Rinka Hayami: A tsundere-leaning sniper with excellent dynamic vision. E-20 Sumire Hara: A plump girl who is a great cook and the class's mother figure. E-21 Yuzuki Fuwa: A girl with vast manga knowledge and detective-like reasoning. E-22 Hiroto Maehara: The class's top playboy. E-23 Koki Mimura: A boy skilled in video editing, directing, and scouting. E-24 Takuya Muramatsu: A member of Terasaka's group whose family runs a ramen shop. E-25 Toka Yada: A girl with a great figure and negotiation skills learned from Professor Bitch. E-26 Taisei Yoshida: A boy skilled with machines whose family runs a bike shop. E-27 Autonomous Intelligence Fixed Artillery (Ritsu): An AI robot with emotions. E-28 Itona Horibe.