For 11 seasons, the Winchester brothers have faced every conceivable kind of evil, even going to hell and back for each other. While their codependent relationship has earned them a few lectures from everyone from friends to the devil himself, there’s no denying that Sam (Jared Padalecki) and Dean (Jensen Ackles) are strongest when they’re together – and that their complicated, dedicated relationship has fueled the CW hit for more than 200 episodes.