"Better Call Saul" Season 3 is bound to delight viewers by adding more familiar faces from the original series "Breaking Bad." This time, cameo appearances of Hank and Marie Schrader are expected. Meanwhile, a fan theorized that Walter White is somehow linked to the zombie apocalypse in "The Walking Dead."

It has been 3 years since "Breaking Bad" went off air, but viewers may have not seen the last of Hank and Marie Schrader. According to The Huffington Post, Walter White's relatives, played by Dean Norris and Betsy Brandt, have a high chance of gracing the upcoming "Better Call Saul" Season 3 on February 2017.

The 42 year-old Brandt told THP that she is open to the possibility of reprising her role in "Better Call Saul." The actress also said that the opportunity has been discussed and she will do anything for the show.

Aside from the Hank and Marie, it is also speculated that Giancarlo Esposito's Gus Fring, drug kingpin, will also appear for cameo role in the forthcoming season. "Breaking Bad" lead actor Bryan Cranston, who played as the famous Walter White, hinted that one more important character is set to appear in the latest season.

While "Better Call Saul" Season 3 cast development sounds exciting, a new fan theory about "Breaking Bad" and "The Walking Dead" is bringing more hype to the fans of both shows. This time, the speculation is that Walter White brought forth the zombie apocalypse in "TWD."

While this fan theory sounds crazy at the same time entertaining, there are enough evidences that support the idea that "Breaking Bad" is the prequel of the hit zombie series.

According to News.com, Heisenberg's Blue Sky meth might be the Blue Sky that Merle Dixon bought in the 1st season. Another fact relates to the car Walt bought for Walt Jr in "Breaking Bad" Season 4, which is identical to the one driven by Glen during the initial season. What's more, when Skylar told Walt to take the auto back, he brought it to "Glenn's Car Lot."

As to the question why Walter White of "Breaking Bad" would have caused the zombie apocalypse in "The Walking Dead," no one knows yet. But many would hope to see more answers than questions in the eyes of Saul Goodman in the upcoming 'Better Call Saul' Season 3.