Karma Akabane. Loves to provoke others. A total sadist. His intellect and physical abilities are both outstanding. He was dropped into Class E due to violent behavior and delinquency. Appearance: Red hair and pale yellow eyes. Male. Height is 175cm.

Nagisa Shiota. Excels at information gathering and keeps track of Koro-sensei's weaknesses. He has a quiet and gentle personality. However, he actually possesses a hidden, extraordinary talent for assassination. He was dropped into Class E due to poor academic performance.

Kaede Kayano. The person who came up with the name "Koro-sensei." She has a massive complex about her flat chest. A huge lover of sweets. She was dropped into Class E due to behavioral issues.

A mysterious super-organism called this name by his students because he is a "teacher who cannot be killed." He possesses a top speed of Mach 20 and versatile tentacles, making almost all means of attack useless. The reason he teaches Class E is still unknown, but his abilities as a teacher are extremely excellent.

Yuma Isogai. Ranked 1st among the boys in knife skills. A handsome guy with absolutely no unpleasant traits. His only weakness is that he's so perfect there's nothing to tease him about. He serves as the class representative of Class E. Childhood friends with Hiroto Maehara.

Hiroto Maehara. A refreshing, athletic, and handsome ladies' man. Ranked 2nd among the boys in knife skills. Expert at hitting on girls. Childhood friends with Yuma Isogai.

Rio Nakamura. Has a feisty, frank, and easygoing personality. Her motivation fluctuates, but she ranked 1st in the grade for English during the first semester finals. A gyaru.

Ryunosuke Chiba. Not a single classmate has ever seen his eyes. He has high spatial processing abilities and ranked 1st among the boys in the outdoor marksmanship test. His eyes are hidden behind his long bangs.