Maximus

Maximus is Black Bolt's younger brother. He came out of Terrigenesis with no powers at all, which in Attilan made him nothing, and he has wanted his brother's throne all his life. He seized it in a coup, scattered the Royal Family across Hawaii, and rigged Attilan to destroy itself without him. Black Bolt left him sealed in a vault as the city was abandoned. Read more →

First turns up in Marvel's Inhumans.