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 Jonathan Del Arco Dr. Fernando Morales Guest Star Ransford Doherty Kendall Guest Star Shanti Lowry Ann Mason Guest Star Lennie Loftin Dr. Stephen Parr Guest Star Tim Martin Gleason Wally Sanders Guest Star Michelle Gardner Lori Shaw Guest Star Akiko Morison Rita Lee Guest Star Paul McCrane Director Duppy Demetrius Writer