Warlocks are born from demons and humans. They are immortal beings who, at one point in their lives, stop aging.
Warlocks are capable of performing magic and casting spells in demonic languages. Most are also versed in making potions.
A universal trait among them are their warlock or demon marks, a part of their body that is strange or unique that identifies them.
Additionally, warlocks are unable to have children.
Within certain districts, there is one warlock who is proclaimed the "High Warlock"—they are recognized by other Shadow World denizens as a powerful figure and a sort of leader of the local warlocks.
A list of known warlocks:
- Catarina Loss
- Dorothea Rollins
- Elias †
- Elliot Nourse †
- Floretta Camp
- Iris Rouse †
- Lin Yuan Yang
- Lorenzo Rey — High Warlock of Brooklyn
- Magnus Bane — High Warlock of Brooklyn (former), High Warlock of Alicante
- Ragnor Fell † — High Warlock of London (former)
- Tessa Gray
- Vera †