Caedmon

Caedmon is a Flaming Fist soldier who will approach the party after they exit the Iron Throne Headquarters and impress upon them that it would be to their benefit to head for the Flaming Fist Headquarters and speak with Scar and/or Duke Eltan. 
He will only appear after the party has initiated contact with Zhalimar Cloudwulfe, who can be found on the fifth floor of the headquarters building. He will not appear if you have only interacted with Thaldorn, who is also located on the fifth floor.
When Charmed, Caedmon has nothing to say beyond that which is available in the dialogue options.