The Originals ran for five seasons and for the most part, its chronology and timelines have been immaculately designed and leave very little room for errors. However, as is almost always the case with fictional universes, complex supernatural rules and lore tend to complicate things a bit and some things disappear into a plot hole.
There are quite a few flaws and glitches in The Originals which have left fans befuddled; however, there are quite a few errors that even the most observant fans have overlooked or simply chose to ignore.
Davina’s Resurrection
The reason Davina’s death was such a momentous event was because of how she died. Her soul was shredded by the ancestors as they wanted her to have an ending worse than death. Though she's consecrated to the Ancestral Plane, pieces of Davina's soul were shown to have remained which Vincent was able to conjure and she was back in the next season.
If the showrunners did plan on resurrecting Davina in any case, then why make her death look so permanent, why not go for an entirely different mode of punishment? Davina’s resurrection brings to question the extent of the ancestors' powers.
Why Wasn’t Marcel Targeted By Witches For His Venom?
Turns out Marcel’s venom, for whatever reason, can kill an original vampire. This is a pretty big deal considering almost every witch in New Orleans and quite a few others have wanted the Original family dead.
So, if Marcel’s venom can effectively wipe out the clown, wouldn’t it be central to the narrative? Instead, Marcel just uses this detail to flex his powers but never seems to do anything about it.
The Powers Of The Originals Are Too Easily Contested
Since they have been introduced in The Vampire Diaries, the Originals’ biggest claim to fame has been their super strength which made sense considering they are the oldest vampires, except Silas. But in The Originals, many regular vampires who are nowhere as old as an Original put the Mikaelsons in jeopardy.
Rebekah has been defeated in physical combat by vampires many times, not to mention Lucien easily defeats Klaus in the third season in quite a few fights. Plus, nearly every other witch seems to be capable of hurting an Original, which seems very inconsistent with the storyline. If the witches really were that powerful, they would have no problem wiping out Originals in the first place.
The Originals Were Not The First Immortals
When they are first introduced in TVD, the Originals are referred to as invincible because they are widely known as the first immortals, but this isn't entirely accurate. Silas had taken the immortality potion thousands of years before the Originals, making him the first immortal.
The Mikaelsons are the first vampire generation but are not the first immortals, by any stretch. Moreover, Mikael, Finn, Elijah, Rebekah, Klaus, and Kol would be killed with a white oak stake made of the actual white oak tree used to turn them, so they are technically not invincible either.
Davina’s Wrong Theory
The mythology behind the creation of the original vampires is pretty widely known. Esher and Mikael made their kids Rebekah, Finn, Elijah, Klaus, and Kol drink the blood of a doppelganger named Tatia, after which Mikael killed them. Esther, an original witch, performed a spell using white oak ash for eternal life and when the Mikaelson kids woke, their father forced them to drink human blood which completed their transition.
But in the episode titled "Heart-Shaped Box" in the third season, Davina says that the Mikaelsons died with vampire blood in their systems, which is wrong and also quite impossible since they were the first vampires.
Hayley’s Transition Makes No Sense
The mythology behind the creation of a hybrid is all kinds of wonky and it’s a wonder even observant fans overlooked this. When a werewolf, Hayley, becomes pregnant with Klaus’ kid, most people did not think she would survive the birth, considering the baby could be much stronger than Hayley and its nature couldn't be determined.
When she gives birth, Hayley's throat is slit by Monique but she survives because she had her tribrid baby’s blood in her system. But how would that turn Hayley into a hybrid?
The Theory About The Originals’ Birthplace Is Strange
Though America wasn’t discovered until 1492, according to TVD lore, Mikael and Esther decided to bring their family to the ‘New World’ in the tenth century after their eldest, Freya, ed away from the plague. The series establishes that this area is now Mystic Falls, Virginia.
It makes sense that they would want to go someplace that has not been affected by the plague and history suggests that around the fourteenth century a band of Vikings did set up some Norse colonies. But the timeline is of course off by three centuries and it’s highly unlikely that the Mikaelsons traveled to America in the tenth century.
The Hollow’s Invincibility Was Flawed
The Hollow was an evil vengeful entity that sought power and also a body to inhabit. Hope removed the Hollow from the bodies of Elijah, Klaus, and Rebekah and took her spirit back into her own body which would destroy her from the inside out. But Klaus transferred her spirit and magic into himself and gave his life in the process so Hope could live.
But the inability of the Original family which boasts of a tribrid, a couple of hybrids, powerful witches, and of course, the oldest vampires to take down an evil spirit made no sense. It would probably have been more plausible if it was a powerful coven of witches or at least some sort of a united front, but for the failure of so many ancient supernatural beings to end one spirit was obviously a poor plan.
The Klaus-Hayley-Elijah Arc Never Stopped Being Weird
The showrunners should definitely have worked out a different path for the romantic storylines of Hayley and Elijah, and it’s not clear why they would design a family set-up that wonky. The awkwardness of Klaus fathering the child of his brother’s partner was rather messy and there's no reason why the writers would choose this path.
To be fair, Hayley and Klaus were great at co-parenting and shared a solid bond, and Hayley and Elijah were a fan-favorite couple. But Hayley and Elijah met through Klaus, and Elijah pursuing the mother of his brother’s child is weird in every way, irrespective of how convenient their living arrangement was.
Elijah’s Accent
Fans probably love Elijah too much to notice this glitch in story-telling, but Elijah adapts a distinctly indistinguishable European cadence in The Originals. In The Vampire Diaries, he talks in a regular American accent, but in The Originals, perhaps to add some nuance to his character, his accent changes quite noticeably.
It’s not British, and he doesn’t sound like Kol or Klaus, but neither is it the same as his accent from TVD as he starts putting emphasis on certain vowels and didn't roll his R's as much.