" Breaking Bad " creator Vince Gilligan cast Bryan Cranston for the role of Walter White based on having worked with him in an episode of what previous television series ?
The concept of Walt as a meth dealer came to fruition when Gilligan was talking with fellow writer Thomas Schnauz , and they joked regarding their unemployment that the solution was " putting a meth lab in the back of an RV and driving around the country cooking meth and making money . "