The Sisters Of Friday the 13th
Gloria Charles as Fox in Friday the 13th Part III (1982)
Jere Fields as Anita in Friday the 13th Part: A New Beginning (1985)
Fun fact: Jere Fields is the sister to Kim and Alexis Fields. Kim you may know from both television series', The Facts Of Life as Tootie and Regine from Living Single.
Renee Jones as Sissy Baker in Jason Lives: Friday the 13th Part VI (1986)
Diane Almeida as Kate in Friday the 13th Part VII: The New Blood (1988)
*Honorable mention to the Black paramedic in Friday the 13th: The Final Chapter (1984)
I wish I knew exactly why this actress is not credited. A familiar 80's face that I cannot place, I've seen her make a mark on other television series and possibly films of the decade. The spooked paramedic who's not comfortable riding in the same van with a comatose Jason in the back at the beginning of the movie can't even get a credit. I've looked about everywhere, which is both driving me crazy and is a bit annoying.
For the brown skin ladies in the Jason Vorhees universe, well, I'm glad they were around but on the critical representation tip, it's rather atrocious. The Friday the 13th franchise produces some of the most memorable Black characters in arguably the lesser of the sequels such as Part 5 and Jason Goes To Hell, but really sticks to their guns on developing survivors with stories around their white female (and sometimes male) protagonists. For the fashion in which these films were created, it's understandable. But a Black final girl in this franchise would've been entertainingly revolutionary.