Ellen Ripley!
Ellen Ripley (Sigourney Weaver) is the primary protagonist of the alien franchise, serving as warrant officer aboard the Nostromo. She responds to the growing disasters with characteristic resourcefulness and courage. Her strong distrust of her fellow crew mate Ash after he disobeys her order not to let the infected Kane back on the ship is vindicated when it is revealed that the survival of the crew is not his priority. Ripley (along with Jones the cat, whom she rescued) is the only survivor of the crew's encounter with the alien. In 2003, Ripley was selected by the American Film Institute as the eighth greatest hero in American cinema history on their 100 Years... 100 Heroes and Villains list. Entertainment Weekly called the character "one of the first female movie characters who isn't defined by the men around her, or by her relationship to them" thanks wiki..
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Major Alan "Dutch" Schaefer!
Major Alan "Dutch" Schaefer (Arnold Schwarzenegger) is the leader of the team and the protagonist of the first movie. Dutch is an elite veteran. He and Dillon served together in Vietnam during the Battle of Huế. He is sent on a mission in Val Verde, under the belief that presidential cabinet members of Guatemala were kidnapped by guerrilla forces. After attacking the guerrilla's post, they discover that the men were actually CIA agents. It is also known that Dutch and his team fought in Afghanistan for a time as stated by Poncho. After the Predator kills all of Dutch's team and Dillon, and with Anna being rescued, he is the only man left in the jungle with the Predator. Using a knife and vines to fashion primitive weapons and traps including a spear (with the knife as the blade), and a bow with an explosive-tipped arrow made from a 40mm grenade, he covers his body in mud after discovering the Predator sees through infrared, essentially making him invisible. Though the Predator falls victim to a number of Dutch's traps, they fail to kill. Eventually, the Predator catches him and the two fight hand to hand. Despite his impressive physique, Dutch is no match for the Predator, only surviving when he manages to lure it into a trap where it is nearly crushed by a log. The beaten Predator then activated a self-destruct device for its suicide and to kill Dutch, but Dutch is rescued by the rescue helicopter that saved Anna. Dutch is referenced in Predators, when Isabelle says the creature they just saw matched the "detailed description" by the only survivor of the 1987 Guatemala mission. Thanks wiki!