The actor playing role in《Breaking Bad Season 4》is“Aaron Paul”

He was an addict. His parents did not remember having such a son. He once said to an orphan: “I hope you will be happy for the rest of your life”.

He is a drug dealer, and he has two or three fair-weather friends. He draws his former teacher Walter into the business, and the teacher passes him the drug-making secrets. Under Walter's guidance, he becomes a skilled poison-maker.

He makes money and then throws it away.He committed a crime against the evil star, and everyone he loved died because of him.