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 Frances Sternhagen Willie Ray Johnson Guest Star Barry Corbin Clay Johnson Guest Star Jonathan Del Arco Dr. Fernando Morales Guest Star Ransford Doherty Kendall Guest Star Jake Busey Eric Shaw Guest Star Suzanne Cryer Emily Shaw Guest Star Stephanie Lemelin Claudia Shipley Guest Star McKinley Freeman Agent Burns Guest Star Pamela Gray Laura Burke Guest Star Andy Fischer-Price Ian Burke Guest Star D.B. Sweeney FBI Special Agent Morris Guest Star David McWhirter Director Ken Martin Writer