I've noticed these days that, whenever the script has a scientist, computer expert, etc, the actor is very likely to be black.
Any deviance from this trend is decried as "racist". Meanwhile, blacks are awarded about 1% of physics PhDs and 1.3% of computer science/engineering PhDs.
And it seems that so many TV shows or movies, if there’s a courtroom scene, the judge is frequently a black woman. Just an observation.