Peter Berg

Friday Night Lights executive producer Peter Berg is joining Prime Suspect — in front of the camera, according to Entertainment Weekly.

Berg, 47, will appear in one episode as Dan Costello, a married deputy chief who had an affair with Maria Bello's Jane. Rumors of their fling are now causing others to raise eyebrows at Jane's promotion to homicide.

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Berg, who's best known on-screen for the film The Last Seduction and as Dr. Billy Kronk on Chicago Hope, last showed off his acting chops in a 2008 episode of Friday Night Lights.

Prime Suspect premieres Thursday at 10/9c on NBC.