Faust, who starred in The 4400 and has also appeared on Heroes and Smallville, has been cast in the recurring role of Harrison. Lone Star revolves around Bob Allen (James Wolk), a con artist living two separate lives in Texas. Harrison is the ex-husband of Bob's wife Cat Thatcher (Adrianne Palicki).
According to the official character description posted by Entertainment Weekly, which first reported the news, Harrison is Cat's high school mistake-turned-unfaithful ex. He returns to town to prove he's a changed man.
Reps for the Fox series did not immediately respond to TVGuide.com's request for comment.
Lone Star premieres Monday, Sept. 20 at 9/8c on Fox.