- Real Name: Halla Culemerwin
- Race: Trill (unjoined)
- Birthdate: 235307.4 (July 4, 2353)
- Birthplace: Trill
- Eyes: Green
- Hair: Light Brown with White Stripe
- Height/Weight: Unknown
Older twin brother of Idril Mar and father of Keiran and Aelia Culemerwin-Devar (children with Alana Devar). He is a wandering unjoined Trill biologist-turned-writer. He currently resides in homes on Betazed and Trill with his expanding family. Was once known as a notorious playboy.