Jay

Jay, or J, is Jaq's brother and a Hunter part of Daemon's Clave. He is presumably blond and had time taken away from him during an encounter with the Sohrem inside Alex Treveney while scouting out a Graveyard. Cassidy called him a 'lightweight'.

Battle with the Sohrem
Although Jay is absent from most of the series, when Sue Chen, Daemon, and Mr. Roi contemplate how to seal the Sohrem, they decided to use the Reave and change the past. By changing the past, they also revived the three fallen Hunters of Daemon's Clave, including Jay.

When Marina Zaikina recovers from the Reave, she finds herself outside the school with all the Hunters, including Jay, Terrence, and Nadezhda. Jay turns around and sees Jaq, who promptly punches him in the face and kicks him, although Jay dodges the kick. The two proceed to fight, as Teresa comments to Ten what a touching reunion it is (sarcastically) and that she never wants a sibling like Jaq.