Sharon Stone
This Wes Craven film features Sharon Stone in one of her earliest roles as Lana Marcus in Deadly Blessing (1981). The slasher flick is considered a transitional piece between Craven's "hard-hitting early work and his later commercial successes." At one point, Stone's character has a nightmare in which she is forced to swallow a spider; as it turns out, the spider was very much real, and Stone refused to participate in the scene until the insect was defanged. Probably a good call.
Jason Alexander
If you've ever seen The Burning, you may have recognized a familiar face—Jason Alexander. Before he was George Costanza on Seinfeld, Alexander made his film debut as Dave, the resident comedic relief in this 1981 slasher film. Perhaps most surprisingly, he has a full head of hair.