Demolition John was a muscular man with a thick mustache and goatee. His head was bald with only three stripes of hair going down. While in prison, he wore the standard striped prisoner uniform.
Demolition John used to be a traveling circus strongman whose parade number was to lift a 2,400 lbs bull over his head, However, his income was lousy.
One day the circus got a rare blue tiger. John had previously heard that a corrupt museum director was prepared to pay 2 million yen for such a tiger, so later that night he snuck to the tigers cage, bent the steel bars and snapped the tiger's head. He got busted shortly afterwards and went berserk around the circus until was stopped by two A-Class heroes.
Human Monster SagaEdit
Super Fight ArcEdit
Appearances in Other MediaEdit
Demolition John greets Speed-o'-Sound Sonic by trying to make sure Sonic knows his place. Sonic disregards him completely, prompting him to punch Sonic in the face. While gleefully stating that he never holds back, he noticed he punched a lead ball instead, breaking his hand in the process.
Abilities and PowersEdit
Demolition John was an A-Class criminal and one of the strongest inmates of Smelly Lid Prison. He was also the boss of the prison's muscle group.
Enhanced Strength: Demolition John possessed rather impressive physical strength, being able to lift a 2400 lbs bull, bend steel bars and snap the neck off a tiger.
Hand-to-and combatant: Demolition John was quite skill in unarmed combat, capable of holding his own against two A-Class heroes for a short time.
- ↑ 1.0 1.1 1.2 1.3 One-Punch Man Encyclopedia; One-Punch Man: Hero Perfection, page 184
- ↑ One-Punch Man Manga; Chapter 66, page 15
- ↑ One-Punch Man Omake; Prison
|S-Class||Garou • Speed-o'-Sound Sonic|
|A-Class||Big Iron • Bull-Bull • Serial Bomber|
|C-Class||Banero • Don Pacino • Pacino Family|
|Ex-Villains||Dr. Genus • Hammerhead • Men's Esthetician Man|
|Undetermined Class||Aburabozu • Base B • Burigura • Chimagusa • Coalition of Assassins • Cow's Stomach • Demolition John • Devil Storm • Fukegao • Harold • Paradisers • Smelly Lid Old Man • Special Moves Mile|