50. Arya Stark and the Hound, 'Game of Thrones'
Sure, their partnership began with a kidnapping, ended with one of them leaving the other for dead, and only lasted for 10 episodes. So what? For the duration of Game of Thrones' fourth season, the unlikely team-up of feral Arya Stark and her much older mentor in murder Sandor "The Hound" Clegane made them the Bonnie and Clyde of Westeros — both ultraviolently badass and a challenge to the very concept of ultraviolent badasses in the first place.