Blackagar Boltagon, known as Black Bolt, is the king of the Inhumans, a strain of humans genetically engineered by the Kree Empire to be living weapons. With his voice, Black Bolt harnesses immense power. When he speaks, he can produce a shockwave able to level a whole city. Even a whisper from Black Bolt renders his enemies feeble and broken. He has endured rigorous conditioning to control this power, choosing to remain totally silent. Only in defense of his people does Black Bolt unleash the power of his destructive voice.

Crystalia Amaquelin is a princess of the Inhuman Royal Family and younger sister of Medusa, the Queen of the Inhumans. Like other Inhumans, Crystal was exposed to the Terrigen Mists at a young age to gain powers through Terrigenesis, acquiring the ability to psionically control the classic elements of air, earth, fire, and water. Crystal is often accompanied by her loyal companion, Lockjaw.

Lockjaw is a giant Inhuman bull dog with the power of incredible teleportation. He serves the Inhuman Royal Family as an escort and loyal protector – as well as a means of transportation.