
Walter struggles with managing his family while hiding his involvement in the drug business from his brother-in-law and DEA agent Hank Schrader ( Dean Norris). Walter becomes increasingly ruthless as the series progresses, and later adopts the alias "Heisenberg", which becomes recognizable as a kingpin figure in the Southwestern drug trade. Due to his chemistry training and production route, Walter's "blue meth" is purer than any other on the market, and he is pulled deeper into the illicit drug trade. After this discovery, Walter resorts to manufacturing and selling methamphetamine with a former student, Jesse Pinkman ( Aaron Paul), to ensure his family's financial security after his death. At the start of the series, the day after his 50th birthday, Walter is diagnosed with Stage III lung cancer.

Walter became a high-school chemistry teacher in Albuquerque, barely making ends meet with his family: his wife Skyler ( Anna Gunn) and son Walter Jr. Walter was a skilled chemist and co-founder of a technology firm before he accepted a buy-out from his partners.

Walter Hartwell White Sr., also known by his alias Heisenberg, is a fictional character and the protagonist of the American crime drama television series Breaking Bad, portrayed by Bryan Cranston. 308 Negra Arroyo Lane, Albuquerque, New Mexico, United States
