Sidero

Sidero (シデロ) is a villain working for Flect Turn in My Hero Academia: World Heroes' Mission.

Appearance
Sidero is a tall man with slicked back brown and black hair, an extremely wide mouth, and large bulbous elbows.

He wears a gray combat suit of similar design to Rogone and Beros', though his version has sleeves going to his upper arm. Accompany his suit are cream-colored boots, and pale gold horned mask that obscures the upper half of his face. All of his fingers barring his thumbs have black iron balls on his knuckles.

Personality
Like most Humarise members, Sidero is devoted to carrying out Flect's plan. Although he presumably only joined the cult to avoid being killed for having a Quirk, as he was quick to offer information once captured by Heroes.

Quirk
Iron Ball (アイアン・ボール): Sidero's Quirk allows him to sprout and detach iron balls from his knuckles, which can then be enlarged in size and mass. He can detach them to provide ammo for Beros' Quirk.

Trivia

 * He is referred to as the Iron Ball Villain (鉄球ヴィラン).
 * Sidero English voice actor, D.C. Douglas, also voices Untenmaru Kurumada.