3. The tumultuous relationship between Bryan Cranston and Aaron Paul's characters.
Walt and Jesse have a love-hate relationship as the older teacher easily and often gets agitated and frustrated with the younger, inexperienced chemistry flunk.
As the series progresses, the viewers see the two develop a sort of father-son bond, with Walt becoming much closer to Jesse than his actual son, Walt Jr. (He once accidentally refers to his own son accidentally as Jesse.) Jesse becomes very protective of his former teacher when others threaten his life.
The chemistry translates off screen as well.
Anytime these two head out in public together, the pair always deliver a series of must-see photos.
Also, if you've watched the gag reels for &quot;Breaking Bad,&quot; it's easy to see just how well the two get along. Paul has said that Cranston is a giant prankster on set. Photo: AMC