Betty Gabriel
Remember Get Out? Jordan Peele's modern horror flick that's rooted in real-world problems? You may not think of that as a "scream" horror flick, but Betty Gabriel absolutely struck fear into the bones of the viewers.
She played a "reprogrammed" maid who left a string of clues behind her for the main character to figure out what was really going on. Gabriel also appeared in The Purge: Anarchy and Unfriended: Dark Web. She's a favorite of Blumhouse!