The next stem in my Valentine's bouquet of bad-ass women is dedicated to a character so fucking tough that not even death could beat her. Yes, I'm talking about the intensely physical, dangerous, but still sexy Viper pilot Kara Thrace, aka Starbuck (played by Katee Sackhoff) from the Syfy series Battlestar Galactica (a show which had several amazing roles for women, I might add.)
In the original 1970's Battlestar Galactica television show, the rough and ready Starfighter pilot role of Starbuck was played by a male actor. The Syfy show producers took a chance and re-wrote the character for a female lead and in so doing, they created a bad-ass icon for the next millenium.
Check out Starbuck frakkin' shit up in this video compilation with music by Peaches.