At first glance, The Walking Dead and Breaking Bad couldn't be more different. One is a zombie apocalypse/human survival epic, the other a modern classic about a common man forced by circumstance into a life of crime, becoming in the process perhaps the greatest anti-hero of our time. But consider, for a moment, that The Walking Dead and Breaking Bad share a universe and are subtly connected somehow. Sound totally implausible? Well, think again.
Crazy Walking Dead–Breaking Bad fan theory speculation abounded in 2017, and some of these ideas actually hold water (some, on the other hand, are a stretch, even to the most conspiracy theory-minded fans). Some firmly believe The Walking Dead is a Breaking Bad sequel; others note intriguing, but random, correlations (or Easter eggs) between the shows.
There are several references to Breaking Bad on The Walking Dead. Are there any allusions to The Walking Dead on Breaking Bad? Well, yes, but it's a long reach. There are a few references to zombies on Bad, once during a conversation between Skinny Pete and Badger, the other when Jesse plays a zombie-themed video game. More telling, though, is Gus Fring's death. When he was blown up in the nursing home, Gus emerged from the rubble with a hole clean through his head. He was quite literally the walking dead. He collapsed and died moments later, but it's hard to deny there's something zombielike about him in those final seconds.
It's well established that Walter White's brand of meth is especially potent. By the end of Breaking Bad, you learn Blue Sky is being sold throughout Europe. Some fans have posited that Blue Sky created a worldwide epidemic, and the demand for it caused various chemicals to leak during mass production of the drug. This led to the zombie apocalypse of The Walking Dead.
Some proponents of this theory go so far as to suggest Gus Fring accidentally ingested the drug, and was a zombie in Season 4, when he's last seen before collapsing with a hole in his head (remember, you gotta kill a zombie's brain to take it out).
Whoever came up with this theory was obviously smoking some of Walter White's finest Blue Sky. So, suspend your disbelief a bit. In the final episode of Breaking Bad, Walter White dies of gunshot wounds. Or does he? There's a theory White survived his wounds, beat terminal cancer, and hightailed it to rural Georgia, where he became The Walking Dead's Negan. Obviously, there are holes in this theory, the biggest being the total lack of resemblance between the two other than both being white men (there's a three-inch height difference, as well).
The theory suggests that White was so power hungry, he wanted to continue his reign of terror in another location, and the zombie apocalypse provided the perfect opportunity. And maybe he visited a plastic surgeon?
One theory floating around suggests the distinctly Southern hillbillies who show up from time to time on Breaking Bad suggest a shared universe between the New Mexico-set Bad and the Georgia-set The Walking Dead. The fifth episode of Season 2 of Bad is particularly telling. An addict named Spooge and his mate, known only as Spooge's Lady, steal an ATM and struggle to break it open. They sport what look like attack wounds, bruises, and maybe even bite marks. Sure, addicts look rough, but their wounds suggest Spooge and his lady fended off zombies and fled to Albuquerque. Maybe.
If this is true, it contradicts the theory that Walter White started the apocalypse - how is it there are zombies all over Georgia when they haven't yet hit White's hometown?