The Species

With no powers, and nothing considered special about them, other species consider them prey. Humans are exactly what vampires need to survive. Or rather, what they have running through their veins. Given that they are generally not born into the supernatural world, they have been offered the chance to decide for themselves on whether or not they want to be a part of it. Unless wearing or consuming vervain, they can be compelled. They can also be turned into a vampire.

Vampires are a threat to many, especially the humans. They need blood to survive. A human, hunter, or witch can be turned by dying with a vampire's blood in his or hers system. From that point on, they must kill and drain someone for the transformation to be complete. A vampire can die from being stabbed in the heart by a wooden stake, pulling out their hearts, beheading them, burning them, or a bite from a werewolf or a hybrid. Vervain slows them down, but often times does not stop them. Vampires have enhanced abilities, such as speed and healing. They can also compel, though only if the person is not wearing vervain nor consuming it.

Werewolves are a near-extinct supernatural species, which unwillingly transform on the nights of a full moon. They turn into wolves, fearsome and hostile. Even in human form, werewolves possess great strength, as well as other reflexes. A werewolf are a very large threat to a vampire, due to the fact a bite from a werewolf will kill a vampire. A werewolf can also be turned in a hybrid, though only by Klaus Mikaelson using the blood of a doppelganger to finish the transformation.

A witch or warlock is bound to nature, practically a servant. They are meant to keep a balance to things, though not all follow the path of good. If they die with vampire blood in their system, they will return as one. They are mortal, capable of human deaths.

A hybrid is a supernatural cross between a werewolf and a vampire, creating something with the capability of being much stronger than both species. They possess both strengths and characteristics of a vampire and a werewolf. Due to their werewolf side, they do not need a day light ring. And due to their vampiric side, they do not need to turn into their wolf form on nights of a full moon.

Though not much is told about a traveler, they are known to be capable of almost jumping bodies. When one kills their former body, they can take full control of another through spells and chants. One is only capable of becoming a traveler through their blood line. For example, the Petrova blood line.

A hunter is often a human, though, like Mikael Mikaelson, can be of the supernatural. They are trained with the knowledge of how to kill, capable of standing up in a fight to protect themselves or others.

This strictly pertains to Amara Petrova and Silas. As an immortal, they were created by a spell drawn up by Qetsiyah 2,000 years ago in Greece. They have no known threats besides the cure, which can take away their immortality to allow them to be killed. As an immortal, and much like a vampire, they are seen to take blood as a way to gain their strength. Only Silas has the power to invade someone's mind, create hallucinations and toy with whatever he wants.