In The Elder Scrolls V: Skyrim, ghosts look like transparent bluish NPCs. They may or may not be hostile, it all depends on the ghost.
Friendly ghosts[ | ]
- Atmah
- Elvali Veren
- Gallus Desidenius
- Hafnar Ice-Fist
- Headless Horseman
- Helgi
- Svaknir
- Takes-In-Light
- Valdar
Unfriendly ghosts[ | ]
- Subjugated ghosts, guarding Rannveig's Fast
- Yngvild ghosts, guarding Arondil