1) Ellen Ripley in Nostromo uniform from Alien, or shaved head + prison gear from Alien 3
2) Kara "Starbuck" Thrace from Battlestar Galactica (2003)
3) Deckard from Blade Runner
4) The entire Farscape cast. Yes, all of them. Specifically, John Crichton, Aeryn Sun, D'argo, Zhaan, Chiana, Rygel...