A highly accomplished Wizard who belongs to the House of the Athyra. Described as a lanky man with a dark complexion, and older than his appearance would suggest.
Kosadr served as Court Wizard for Zerika the Fourth for a period of at least twenty years prior to the False Jenoine Invasion. He was present, along with Khaavren, the Captain of Zerika's Imperial Guard, at a briefing where the dangers of the Jenoine threat were explained to the Captain. He later expressed some degree of excitement over the prospect that, in spite of the grave nature of the threat, the event marked the culmination of preparations decades in the making.
He likes to spend his evenings drinking at a private club in Adrilankha known as Shimm's. It was while enjoying his evening activities that he heard the tale of the Silver Tiassa, planted intentionally for his ears by Dathaani, which information he then carried back to The Empress.