Will you look at that? It's a Friday two-fer!
Born in 1967. Maybe not the first person one thinks of as a geek star but then one checks her credits and see there's about a dozen of genre films in there. Then one realizes very few of them were very successful so one wavers on including her. But one has had a crush on her for nigh on to twenty years so one doesn't care what you think.
Born in 1952. One big genre role but loads of smaller voice bits in various animated movies and tv shows. Also the obvious choice to play Abner Marsh if anyone ever gets around to making a movie out of Fevre Dream.