WMG / What We Do in the Shadows (2019)

Per wiki policy, Spoilers Off applies here, and all spoilers are unmarked. You Have Been Warned.

Jenna and/or Nadja will be the one(s) to turn Guillermo

In spite of Nandor's would-be Heroic Sacrifice to save Guillermo in Episode 7, the familiar has been showing a lot of resentment toward his master. It rather rightfully so, given that it was because of Nandor's orders that Guillermo accidentally killed the Baron, something that has left him with a lot of obvious trauma. Meanwhile, Nadja has shown genuine care and even respect for Guillermo in Episodes 3 and 5—and she now has a new vampire, Jenna, to train. The official listing for Episode 8 says Nadja will train Jenna on "[taking] her first victim". What could happen is that Jenna will feed on Guillermo, then either she or Nadja (probably the latter, given that Jenna might not have a vial of her own blood ready yet) will make Guillermo drink vampire blood. Jenna learns how to hunt, Guillermo finally gets the one thing he always wanted, and everybody's happy. Further support for the idea: the B-plot of the episode is going to be Nandor-centric, meaning Guillermo will already be intrinsically tied to the plot.

• Now that Guillermo is revealed to be a Van Helsing, this seems pretty unlikely as he appears to be destined to kill the vampires. Or, at the very least, the blood-sucking ones.
• If nothing else, Jemaine Clement has confirmed that Jenna won't be returning for Season 2 on account of Beanie Feldstein's other commitments, so that part of the theory is Jossed.
• Officially Jossed as of series 5 - Derek turns Guillermo, but it doesn't take properly.

The vampires only live with Colin Robinson because he pays their rent.

• Confirmed that Colin paid all the bills in the Season 4 premiere, although it's not stated whether that's the only reason the others lived with him.

The character introduced in the very last scene of season three will be named…

• Robin Colinson. Laszlo will re-check the Council records to try to account for the baby energy vampire's emergence. Lazlo will discover that Colin Robinson's lineage have been alternating between one name and the other each century, over and over, for as far back as records exist.
• Maybe something like this will happen later, but so far, they've just been calling him "Colin".

Laszlo's leprosy is somewhere on his lower ankles/feet.

In the pilot episode, when Laszlo and Nadja are talking about his village being affected by leprosy & the plague, Laszlo specifically states that he also contracted leprosy, but that it "couldn't be seen." Indicating that it was on a part of his body generally covered completely. In a later episode, when Sean asks everyone to take their shoes off in his house, Laszlo's response is a brusque "I'm not taking my shoes off for anyone," a very pointed reaction for such a simple request. In yet another episode, Guillermo suggests that Laszlo change his shoes when they're hunting for the Sire, and Laszlo immediately retorts with, "Why don't you get fucked?" Laszlo seems to have some kind of insecurity around his feet specifically, which suggests that the leprosy he mentioned in the pilot might have been localized only to his feet, thus why he refuses to ever take his shoes off.

Energy vampires are essentially nest parasites.

With Colin Robinson's multiple mentions of having a normal human family, and even a grandmother that he remembers fondly. Combined with the reveal that energy vampires continue their legacies by essentially hitting a reset button and continuing life from day one, it would make sense. They'd implant themselves in a normal human family (or perhaps be dropped off by another trusted vampire) and grow as a normal, if dull person. Then, they'd eventually discover, realize, or even be told about their energy vampirism by their trusted vampire, and develop from there.

Colin Robinson is trolling Laszlo for being kind of a shit dad

• … And it's because Colin Robinson remembers everything that ever happened to him as the child Colin. What better way to collect on people's negative energy than by hiding annoying behaviour behind the "I'm just a kid!" excuse? Maybe he's more powerful this time around and can feed on heartache and nostalgia as well as annoyance and boredom now.
  • Before you ask "What about the wall-knock clues?"...why would Colin need a whole hidden room of his stuff unless he knew he'd need to "find" it one day? The housemates are, after all, very aware of the camera crew watching and recording a good chunk of their lives— Colin could have easily fooled them as well to keep up the sanctity of the long con.

At some point, the documentary will air, and it will be revealed that none of the vampires show up on screen.

Part of vampire lore is that they don’t show up on film, much like their lack of reflection. They only appear to us the audience, but not the in-universe audience.

• Jossed - while they have no reflections, the opening credits shows numerous photographs of the roommates through the ages, and they consistently show up on film throughout the series - Laszlo has even had a lengthy career in porn classics like "Vampire Tricked in Steam Room".

Nadja likes Gail

Nadja actually has no problem with Gail, the others just assume she does because they're both women.

If Derek is successfully bribed to bite Guillermo, the vampirism won't take.

This will either be because Guillermo has Van Helsing DNA, causing his body to reject the Vampirism, or because neither he, nor Derek, are aware of the proper steps needed to successfully complete the process. (Say, Guillermo drinking a bit of Derek's blood as Nadja did with Jenna.)

• Partially confirmed - although Guillermo does drink Derek's blood and has some supernatural qualities like small wings, he hasn't become a full vampire.

The documentary is meant for supernatural audiences

The fact that the show is a mockumentary raises a couple of issues if the show is meant for broadcast on human channels. Most notably, Guillermo agrees to be on the documentary with his face unobscured despite committing, or acting as an accessory to, numerous crimes which could easily put him in prison for life, if not earn him the death penalty, and the documentary not only shows him committing these crimes, but showcasing a high degree of premeditation. Numerous famous faces turn up on screen as themselves, revealing their vampiric nature. Most notably the roommates hypnotize anyone who finds out they're vampires to forget, including both times they end up on television in-universe, but never do it with the camera crew following them around specifically for a documentary. If the documentary is meant for the supernatural world, these issues disappear. We know that the supernatural community has television, and none of them would think twice about a familiar sourcing prey for their master, or any of the other (human) crimes he commits. The celebrity vampires like Tilda Swinton and Evan Rachel Wood would have no reason to hide their true nature for a documentary aimed at the supernatural community, and the roommates would have no reason to hypnotize the supernatural community to forget about them.

Alternatively, the documentary is for humans, but after the masquerade drops

Technology is evolving, and all it takes is one member of the community to get caught for the masquerade to drop, so the vampire council shifts to damage control - if they drop the masquerade themselves and release a documentary, then they can control the message. They pick a (relatively) chill group of vampires (which just happens to include an energy vampire) hoping that when they drop the masquerade, normal humans will be more accepting after seeing the documentary. With the above WMG, some of the roommate's statements fall into As You Know territory - a documentary meant to sincerely educate humans on the inner workings of the supernatural world and show that, really, vampires and the like aren't so different than humans, and even include some well-known celebrities.

• Related to this, Wellington Paranormal explicitly shows the supernatural world from the perspective of a bunch of humans who just happen to catch it on camera, and that's in a relatively small city - not only is a big city like New York likely to have a much higher risk of humans stumbling on or filming the paranormal, Nadja even says there's a Night Market in every town - there's supernatural people all over the world, and it's becoming harder and harder to hide that fact from humans.

Nandor knows about Guillermo

Nandor knows that Guillermo has been turned into but is playing ignorant because he like Guillermo too much to want to kill him.

• Jossed; Nandor is genuinely oblivious until the penultimate episode of season 5.

The documentary is specifically intended for supernatural beings-but specifically newcomers to being such.

The format of the documentary and its tendency to address many things well-known to seasoned vampires as though viewers will be unfamiliar do imply an audience not currently aware of the supernatural world. However, as there is The Masquerade still in effect, it does raise some questions. The clearest answer is the documentary is specifically meant to be viewed by newcomers to the supernatural world-newly turned vampires in particular, but perhaps others like newly bitten werewolves or recently initiated witches and necromancers might extract some value from the show as well.

The documentary crew is a mix of vampires and humans.

This may help explain A) how the crew was able to actually get access to a group of vampires and B) how some of the documentarians have managed to survive filming in situations that should've gotten them killed if they were human. Of course, not all of the documentary crew are vampires-otherwise the Baron wouldn't have been able to feed off the sound guy, the household of vampires the Mosquito Club raids wouldn't attack them and they couldn't shoot during the day-but the group being a mix of vampires and humans might serve to illustrate how, for instance, they could film at the Night Market or the Theatre de Vampires without any apparent issue.

Guillermo's brief stint as a vampire removed his natural vampire hunter abilities

The reason his transformation was struggling to take hold was because his vampire hunter cells were fighting off the vampire cells. But then Nandor managed to complete Guillermo's transformation. In doing so he likely killed off Guillermo's vampire hunter cells, and the damage may have stuck when Guillermo became human again. Season 6 could deal with the fallout of this, like Guillermo having to hide the fact that he can't properly be Nandor's bodyguard anymore.

Old vampires don't look like this naturally, they had a Djinn alter their appearance.

Once Nandor wishes for beautification, he starts to look like a middle aged vampire with high eye brows and tight skin. Other vampires did the same thing and looked like gargoyles after a while.

The company didn't tell Collin what the company did on purpose.

They kept him out of the loop to avoid being drained.

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