We may not have seen the last of Walter White. As Breaking Bad creator Vince Gilligan prepares for the spinoff series Better Call Saul, he tells The Hollywood Reporter that both Bryan Cranston and Aaron Paul, who played Jesse, have expressed an interest in coming onto the new show in a cameo. "The sky is the limit with a prequel," Gilligan tells the Reporter. "You never know who might turn up or when or where." The prequel series is set to star Bob Odenkirk, who will reprise his role as the sleazy and surprisingly successful lawyer Saul Goodman.

The series will be funnier, but drama isn't disappearing

Gilligan says that the story of Better Call Saul hasn't been nailed down just yet, though he knows that it'll show both Goodman's professional and personal life — the latter of which has never really been seen. "It's gonna certainly be funnier than Breaking Bad," Gilligan tells the Reporter. He says the show will be lighter, but that there will certainly be drama in the mix as well. "You can't have the one without the other, I find."

While Cranston and Paul would be limited to cameos, one Breaking Bad cast member could end up playing a major role in the new series: Jonathan Banks, who played the private investigator, hit man, and general problem-solver Mike Ehrmantraut. "I could definitely see a version of [Better Call Saul] where Mike Ehrmantraut is an important part of this series," Gilligan tells the Reporter. There's no word yet on when the series is expected to start airing, but Gilligan says that he hopes his team of writers can be back to work soon. "A big part of the draw … is to get the band back together," Gilligan says. "I want to get as much of the folks who worked on Breaking Bad back together as possible."