Kyra Sedgwick Deputy Chief Brenda Johnson Actor J.K. Simmons Asst. Chief Will Pope Actor Corey Reynolds Sgt. David Gabriel Actor Robert Gossett Commander Taylor Actor G.W. Bailey Det. Lt. Provenza Actor Anthony John Denison Det. Lt. Andy Flynn Actor Michael Paul Chan Det. Mike Tao Actor Raymond Cruz Det. Julio Sanchez Actor Phillip P. Keene Buzz Actor Mary McDonnell Captain Sharon Raydor Actor Jon Tenney Special Agent Fritz Howard Actor, Director Billy Burke Phillip Stroh Guest Star Frances Sternhagen Willie Ray Johnson Guest Star Courtney B. Vance Chief Tommy Delk Guest Star Jonathan Del Arco Dr. Fernando Morales Guest Star Barry Corbin Clay Johnson Guest Star Shanti Lowry Ann Mason Guest Star Ransford Doherty Kendall Guest Star Curtis Armstrong Peter Goldman Guest Star Mark Pellegrino Gavin Q. Baker III Guest Star Nelson McCormick Director Michael M. Robin Director Steve Robin Director David McWhirter Director Rick Wallace Director Sheelin Choksey Director Arvin Brown Director Michael Pressman Director Paul McCrane Director Steven Kane Writer James Duff Writer Leo Geter Writer Duppy Demetrius Writer Michael Alaimo Writer Adam Belanoff Writer Ken Martin Writer Jim Leonard Writer Mike Berchem Writer Carson Moore Writer