Astraia Tor Deikun is the mistress of politician Zeon Zum Deikun, leader of the Autonomous Republic of Munzo at Side 3. She was originally a cabaret singer from the night club "Eden" at Side 3 where she first met Deikun, who was a mere political activist at the time. She is old friends with Clamp, who worked as bartender at the club and Crowley Hamon, who also worked there. Astraia had two children, Casval Rem Deikun and Artesia Som Deikun. After Deikun's death, she was placed in state custody by Roselucia Deikun, Zeon's legal wife who hated Astraia intensely, while her children fled to Earth. She later became ill due to the stress of being imprisoned, and passes away in the company of Hamon.
- Her Japanese voice actress also voices Marina Ismail in Mobile Suit Gundam 00 and Marina Asuno in Mobile Suit Gundam AGE.