Tanathal is a level 72 elite lich being interrogated by the death knight Thassarian in the Wailing Ziggurat in the contested territory of the Borean Tundra.
- Tanathal is possibly named after Thanatos, the embodiment of death in Greek mythology.
- He made a brief appearance in the Death Knight manga.
- He is one of the few friendly liches in World of Warcraft, the other being Amal'thazad. He, however, is aligned with the Scourge and the reason he is friendly is because he is currently imprisoned by Thassarian for interrogation, making him unable to attack.