All spoilers are unmarked!
Voiced by: Akio Ōtsuka, Hiroshi Kamiya (young), Mika Kanai (child) (Japanese), John Swasey, Ryan Negrón (young) (English), Carlos Segundo (Latin American Spanish), Luca Ghignone (Italian)
Debut: Chapter 59 (Manga), Episode 33 (Anime)
Playable in: My Hero One's Justice, My Hero One's Justice 2, My Hero Academia: Ultra Impact
Quirk: All For One (Artificial Duplicate), All For One (Original; Formerly)
Stolen Quirks:
Currently: Air Cannon, Warping, Springlike Limbs, Kinetic Booster (x4), Strength Enhancer (x3), Impact Recoil, Rivets, Spearlike Bones, Hypertrophy, Multiplier, Forcible Quirk Activation, Rivet Stab, Infrared, Unnamed Empath Quirk, Life Force (Original), Unnamed Mind Control Quirk, Unnamed Landscape Manipulation Quirks, Radio Wave, Search, Unnamed Lie Detection Quirk, Unnamed Levitation Quirk, Unnamed Telekenisis Quirk, Unnamed Crescent Blade Quirk, Unnamed Black Ooze Quirk, Hardflame Fan, Unnamed Mouth Quirk, Vibration Detection, Unnamed Glue Quirk, Unnamed Shield Quirk, Unnamed Spatial Distortion Quirk, Unnamed Body Appendages Quirk, Unnamed Repulsion Quirk, Unnamed Black Lightning Quirk, Luminescence, Unnamed Nuclear Explosion Quirk, Unnamed Shapeshifting Quirk, Unnamed Hardening Quirk, Impure Beam, Fierce Wings, Dark Ball, Brawn Boost, Bloodlet, Antigen Swap, Bloodcurdle.
Formerly: Power Stock, Unnamed Monster Jaw Quirk, Decay, Super Regeneration, Enhanced Strength, Overclock, Muscle Augmentation, Air Walk, Navel Laser, Body Bulk, Scale Mail, Transforming Arms, Unnamed Self-Destruct Quirk, Mole.
Rank: S
The founder and mastermind of the League of Villains, he is an infamous villain believed to be an urban legend. Initially only heard through a computer monitor, he is eventually forced to reveal himself to save the rest of the League from capture, at the cost of his own imprisonment.
All For One has been around since Quirks first emerged. Since that time, he has used his power to amass numerous devout followers, with whom he ruled the Japanese underworld from the shadows for years. He had a younger brother named Yoichi Shigaraki, who opposed him and became the first wielder of One For All. Five years prior to the events of the main story, All Might put a stop to his reign of evil by defeating his minions and eventually the man himself in a battle that left both parties severely injured. Since then, All For One wants to bequeath his place to his protégé, Tomura Shigaraki.
In the aftermath of Paranormal Liberation War, he uses his Quirk vestige to possess Shigaraki which leads to freeing his original body from Tartarus. He then sets out with his protégé to wage war on Izuku Midoriya, marking him as his new nemesis after All Might passed on One For All so he can finally steal it for himself. By the series' final arc, it's revealed All For One intends for One For All to boost his own abilities so he may Take Over the World by making him and his Quirks the only way to provide sustainable resources, forcing everybody to rely on him as a God-Emperor.
All For One boasts of a staggering power in a class of its own due to his titular Quirk, "All For One". With it, he can steal other Quirks for personal use or transfer them to others. He inadvertently created One For All this way.
