Several years ago I was on Facebook reading a comment that there where no Black people in Sci-Fi. Nonsense I replied and set about putting together a Pinterest list of female and male Black actors in the genre.
Admittedly, my list is outdated (I think I ended with Black Panther) but here is my pictorial list. There are so many to add so if you see that I have missed someone let me know.
https://www.pinterest.ca/MBHistories/black-actors-in-scififantasy-media/
Many Black Histories 