Diablo, the main antagonist in the Diablo series, is a being of pure evil and does not possess a defined gender.
- Diablo is a powerful demon and a manifestation of the Prime Evil.
- The Prime Evil is a being of chaos and destruction, transcending traditional concepts of gender.
- Diablo has possessed different hosts, including humans and other beings, throughout the series, adopting their physical form.
While Diablo can appear in male or female forms depending on its host, it is ultimately a genderless entity.