Villain with O

  • Folklore monster, often the baddie in tales.

  • Surname of Spider-Man foe Doctor Octopus.

  • Spider-Man villain, aka Doctor Octopus.

  • Real-world terrorist; Al-Qaeda leader.

  • Antagonist in God of War Ragnarok; villainous.

  • From Invincible; super-strong, often villainous.

  • Transformers Decepticon warlord, a bad guy.

  • Invincible's dad; ruthless supervillain.

  • Marvel cosmic entity of nothingness; a villain.

  • Major “Naruto” villain, snake-like immortal sorcerer.

  • Doctor Otto Octavius, Spider-Man foe known as Doctor Octopus.

  • Onceler

  • Accused ex‑NFL star; for game, infamous real‑world villain.

  • Watchmen mastermind Adrian Veidt, idealistic but villainous.

  • Norman Osborn, the Green Goblin, classic Spider‑Man foe.

  • Fire Lord Ozai from Avatar, tyrannical ruler of the Fire Nation.

  • Same Osborn/Green Goblin villain family in Marvel stories.

  • Obito Uchiha from Naruto, masked mastermind behind Akatsuki.

  • Osama bin Laden, terrorist leader, notorious real‑world villain.

  • “Omen” is a named sinister agent/being in several games/comics.

  • O'hare

  • Boogeyman‑style gambling villain from The Nightmare Before Christmas.

  • The Penguin from Batman, crime boss of Gotham City

  • X‑Men foe, Russian mutant vampiric supervillain

  • Marvel villain, cosmic being serving Galactus

  • Iron Man foe, arms dealer in comics and MCU

  • Marvel psychic entity, huge X‑Men crossover villain

  • Bond henchman Odd Job, killer bowler hat thrower

  • Oddjob, iconic Goldfinger henchman in Bond

  • DC supervillain Owlman, evil Batman counterpart

  • Egyptian god of death, later cast as villain

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