The "This Is Us" actor will portray a mysterious character N'Jobu, the only figure from T'Challa's past. N'Jobu doesn't appear in the original comic book series, reported Ace Showbiz.
He will join Chadwick Boseman who stars as the titular hero, Michael B Jordan who stars as Erik Killmonger, Forest Whitaker, Lupita Nyong'o, Angela Bassett and Danai Gurira.
Whitaker, Nyong'o, Basset and Gurira will be playing the role of Zuri, Nakia, Ramonda and Okoye respectively.
The 40-year-old actor expresses his excitement regarding the casting as tweeting, "Beyond thrilled to be joining this immensely talented group of actors & storytellers! Thank you for a seat at the table!"
He's also starring on the new NBC series "This Is Us".
"Black Panther" will be directed by Ryan Coogler. The superhero movie is scheduled to hit US theatres on February 16th, 2018 and will begin filming in January in Atlanta, Georgia.