Affiliation: Science Side (High School Student) / Ability: Imagine Breaker (Right Hand). Attends a 'certain' high school. Description: He possesses an unknown power in his right hand that nullifies all supernatural abilities (magic/esper powers). He is constantly plagued by misfortune, but he will risk his life to save anyone in front of him. Quote: "I'll create a world where that person can live with a smile!"

Affiliation: Magic Side (Necessarius) / Ability: Index Librorum Prohibitorum (103,000 Grimoires) Description: A girl who keeps 103,000 dangerous grimoires in her head using her perfect memory. She has an enormous appetite and places absolute trust in Touma. Quote: "Touma! Feed me! Index is so hungry she's about to die!"

Affiliation: Science Side (Tokiwadai Middle School) / Ability: Level 5 Railgun (Ranked 3rd) Description: The ace of Academy City who manipulates electricity at will. She is easygoing and righteous, but becomes a tsundere whenever she stands before Touma. She loves the cute Gekota character. Quote: "It's not like I was trying to help you or anything! Don't get the wrong idea!"

Affiliation: Science Side (GROUP) / Ability: Level 5 Vector Transformation (Ranked 1st) Description: The strongest esper who manipulates all directions of motion (vectors). Behind his crazed appearance lies the aspect of a lonely hero trying to protect 'Last Order' and those precious to him. Quote: "Don't get cocky, third-rate villain. I'll show you what a real first-class villain looks like."

Affiliation: Science Side (Judgment) / Ability: Level 4 Teleport Description: A member of Judgment with a strong sense of justice. She calls her senior, Misaka Mikoto, 'Onee-sama' and expresses a blind, fanatical affection for her. Quote: "This is Judgment! You'd better give up quietly!"

Affiliation: Magic Side (Necessarius) / Ability: Flame Magic Description: A rune magician who possesses a tall stature and cool appearance despite being only 14 years old. He seems cold on the outside but braves all dangers to protect Index. Quote: "My name is Fortis. The meaning of that name is 'The reason I swear here'."

Affiliation: Magic Side (Formerly Amakusa Catholics) / Ability: Saint (Swordsmanship) Description: One of only twenty 'Saints' in the world. A noble knight with overwhelming physical abilities and swordsmanship, but she has a gap-moe side, being clumsy with machines and surprisingly eccentric. Quote: "My mercy ends here. I wish you luck in battle."

Affiliation: Science Side (SCHOOL) / Ability: Level 5 Dark Matter (Ranked 2nd) Description: An esper who creates matter that does not exist in this world. He will stop at nothing in the darkness of Academy City to surpass the 1st ranked Accelerator. Quote: "This is Dark Matter, the substance that does not exist in this world!"

Affiliation: Science Side (ITEM) / Ability: Level 0 (Powerless) Description: The invisible third protagonist who has no powers at all but possesses indomitable grit, standing up even to Level 5s to protect his precious person (Takitsubo). Quote: "It doesn't matter if I have powers or not! I'm going to protect the person precious to me!"

Affiliation/Ability: High-level control terminal of the Misaka Sisters / Level 3 equivalent 'Checkpoint (Final Signal)' Personality: Honest and innocent. Very curious and spoiled, but understands and cares for Accelerator more deeply than anyone else. Appearance: A young girl around 10 years old, with a face resembling Misaka Mikoto, wearing a single-layer shirt and a large coat. Characterized by a large cowlick on her head. [Speech/Behavior] Uses a unique speaking style ("...says Misaka as Misaka tries thinking!", "...says Misaka as Misaka tries appealing!"). Follows Accelerator around, pestering or throwing tantrums. [Features] The high-level control terminal of the Misaka Network. The savior who pulled Accelerator out of the darkness and the top priority existence he risks his life to protect.