Breaking Bad star Bryan Cranston details the origins of Walter White's look. Known previously for playing Hal in Malcolm in the Middle, Cranston went on to portray the dispirited high-school chemistry teacher turned meth manufacturer in AMC's acclaimed drama. Over five seasons, Breaking Bad took Walt from "Mr. Chips to Scarface," as creator Vince Gilligan puts it, which earned Cranston much critical acclaim and three consecutive Emmy Awards for his outstanding performance.
https://screenrant.com/breaking-bad-walter-white-look-origin-cranston/