Unlike his character, he can speak out…
He said that getting a call from Kevin Feige was "one of the most unexpected" things in his life, and said he was "beyond grateful" for the opportunity to work with Sam Raimi, the director of 'Multiverse of Madness'.
Mount also confirmed that he has indeed developed his own sign language for his character whose one word could level a city with a shockwave. These powers, however, did not help Black Bolt much when he was confronted by Wanda, who quickly came up with the idea to remove his mouth completely and then brutally kill him.
It looks like fans simply did not have enough of Black Bolt and the race of Inhumans he comes from, so Mount's Twitter post has triggered a wave of requests to bring him back and introduce his race back into the MCU in a less frustrating way.
Some fans even think that 'Multiverse of Madness' was only the beginning for the Inhumans.
Black Bolt was indeed one of the fans' favorites among the Illuminati group introduced in the Doctor Strange sequel. His quick and gruesome death prompted a lot of disappointment since fans hoped there was a chance for the character to stay for at least a little longer.
Now that people demand a separate Inhumans project, chances are that Kevin Feige might actually think about it – if he hasn't already. Still, there was no official indication of Marvel developing anything connected to Black Bolt or his genetically altered superhuman counterparts.