Better Call Saul cast as Betsy and Craig Kettleman, described as "the world's squarest outlaws." Going into Season 3, it was announced that Giancarlo Esposito would return to play Gus Fring. The showrunners have teased that "familiar faces" from "Breaking Bad" will make appearances during Season 4. They will also cast an actor for the character "Lalo", mentioned only by name in the episode "Better Call Saul" episode of "Breaking Bad". Both Bryan Cranston and Aaron Paul said, as of Season 3, they are both open to reappearing on the show as Walter White and Jesse Pinkman, respectively, if asked, believing that Gilligan
Walter White (Breaking Bad) on Walt's 50th birthday, when he is diagnosed with Stage IIIA lung cancer. After this discovery, he resorts to manufacturing methamphetamine and drug dealing to ensure his family's financial security after his death. He is pulled deeper into the illicit drug trade, becoming more and more ruthless as the series progresses, and later adopts the alias "Heisenberg", which becomes recognizable as the kingpin figure in the local drug trade. Series creator Vince Gilligan has described his goal with Walter White as "turning Mr. Chips into Scarface", and deliberately made the character less sympathetic over the course of the series. Walt's