|Race||Blood elf (Humanoid)|
|Affiliation||Kirin Tor, Sunreavers (ostensibly); Garrosh Hellscream (secretly)|
|Location||Silvermoon City (presumed)|
After the Council of Six agreed to aid Theramore, both Aethas Sunreaver and Rhonin recommended Thalen to join the mission. He accompanied Rhonin to defend Theramore Isle, where he was ordered to magically strengthen the northern gate. However, while he appeared to be a loyal member of the Kirin Tor, he was actually a Horde loyalist, and instead weakened the gate. His treachery was discovered by Jaina, who confronted him at his post. Confident, Thalen prepared to do battle with her, though Pained promptly knocked him unconscious and sent him to Captain Evencane for questioning. After the Horde broke through the northern gate, some of them rescued Thalen and removed him from the city; he was safely away when Garrosh Hellscream destroyed Theramore with a mana bomb.
Mists of Pandaria
This section concerns content exclusive to Mists of Pandaria.
After regaining consciousnesses, Thalen found himself shackled in the basement of Foothold Citadel. However, before Captain Evencane could interrogate him, he was successfully rescued by Horde adventurers. Grateful for being freed, Thalen tells his rescuers the truth about Garrosh's attack on Theramore. He will then send himself and the players through a portal to Orgrimmar so they can escape before the mama bomb destroys city. Before leaving, he tells the adventurers to visit him, if they ever come to Silvermoon City.
Thalen conjuring his portal to Orgrimmar.
- Patch 5.0.4 (2012-08-28): Added.