A man walking down a hallway in a dark room

A photo of Walter in a dark, gritty alleyway, looking determined and focused.,Breaking Bad,Walter White, the central character of “Breaking Bad,” undergoes a dramatic transformation in appearance: from a meek, unassuming high school chemistry teacher with a mustache and glasses, to the bald, bearded figure known as “Heisenberg,” exuding menace and authority. His wardrobe shift from nondescript, muted clothing to darker, more assertive attire mirrors his descent into the criminal world.