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
Breaking Bad that he "didn't really give much thought on how well it would sell", stating that he would have given up on the premise since it was "such an odd, dark story" that could have difficulties being pitched to studios. As the series progressed, Gilligan and the writing staff of "Breaking Bad" made Walter increasingly unsympathetic. Gilligan said during the run of the series, "He's going from being a protagonist to an antagonist. We want to make people question who they're pulling for, and why." Cranston said by the fourth season, "I think Walt's figured out it's better to be a