Jason Teague has a slim build, is medium height, and touts sandy hair.

Jason attended the University of Texas at Austin, where he was a member of Phi Gamma Delta and formed a friendship with Avery Isken, also from UT, who greased his slide into the Corona Tower research facility family. 

Jason finds it amusing when people connect his name to a character in the Smallville television series. "No," he tells them with a laugh. "That was a character played by Jensen Ackles, and yes, he died in the series, and yes, I'm still alive."

Jason is friendly, outgoing, and demonstrates the best of Texas enthusiasm and warmth. Jason suffers from a heart condition, and his doctors have told him he is unlikely to live past his mid-30s. Because of this, he lives life to the fullest, because today is the only one he is certain he has.

We first meet Jason Teague in Book 8 of The Human-Hybrid Project, Sunchaser's Gambit.