Claim: Inhumans's main character is a mutant.

Black Bolt -LRB- Blackagar Boltagon -RRB- is a fictional character appearing in American comic books published by Marvel Comics . Created by Stan Lee and Jack Kirby , the character first appears in Fantastic Four # 45 -LRB- December 1965 -RRB- . Black Bolt is the ruler of the Inhumans , a reclusive race of genetically altered superhumans . Black Bolt 's signature power is his voice , as his electron-harnessing ability is linked to the speech center of his brain . Speaking triggers a massive disturbance in the form of a highly destructive shockwave capable of leveling a city . Due to the extreme danger posed by this power , the character has undergone rigorous mental training to prevent himself from uttering a sound , even in his sleep , and he usually remains completely silent and speaks through sign language or via spokesperson .   The character of Black Bolt has featured in other Marvel-endorsed products such as arcade and video games , animated television series , and merchandise such as trading cards .