Blackagar Boltagon, known as Black Bolt, is the king of the Inhumans, a race of people who have been genetically modified by the Kree empire to become living weapons. With his voice, Black Bolt wields immense power. When he speaks, he can produce a shockwave capable of leveling an entire city. Even a whisper from Black Bolt renders his enemies weak and broken. He has undergone rigorous training to control this power, choosing to remain completely silent.