Origin:

- Esther Mikaelson had a secret affair with Ansel, the Alpha of a werewolf pack
- When her son, Niklaus made his first human kill, after being turned into an Original
- He triggered his werewolf gene, which turned him into the world's first hybrid
- However, his werewolf nature was bound by Esther with the Hybrid Curse

Description:

werewolf turned into a vampire

Highlights:

- Curse was lifted through the Sacrifice Ritual over a thousand years later
- Being half-original, Klaus doesn't share most of the weaknesses of the Hybrids

Miscellaneous:

Feed on human or animal blood

Anatomy:

- Sclera is black, irises turn golden-yellow
- Dark veins appear under their eyes
- Fangs

Reproduction:

- Werewolves must die with Klaus or Tribrid blood in their system
- Awaken in transition, neither truly living nor truly dead
- Must drink the blood of a doppelganger or Tribrid within 24 hours, or they die
- Transition is complete, once they drink the blood
- If they feed on regular human blood, while transitioning;
- Become rabid, bleed from their eyes, & eventually die in pain

Death:

Body desiccates when they die

Abilities:

- Can appear human
- Enhanced Physiology
- Immortal
- Can turn his humanity on & off
- Mind compulsion
- Healing Factor
- Transform into a wolf without the full moon's influence

Weaknesses:

- Mummify if they abstain from blood
- Can't enter a home without an invitation
- Vervain
- Wolfsbane
- Sunlight
- Wood through the heart
- Decapitation
- Heart Extraction