Main Characters Deputy Chief Brenda Leigh Johnson 109 main appearances Assistant Chief Will Pope 109 main appearances Detective Sgt. David Gabriel 109 main appearances Commander Russell Taylor 109 main appearances Detective Lt. Louie Provenza 109 main appearances FBI Agent Fritz Howard 109 main appearances Detective Lt. Michael Tao 95 main appearances Detective Julio Sanchez 95 main appearances Detective Lt. Andy Flynn 107 main appearances Buzz Watson 66 main appearances Detective Irene Daniels 35 main appearances Captain Sharon Raydor 18 main appearances
Recurring Guest Characters Gretchen Schiller 1 guest appearances ER Doctor 1 guest appearances Detective Hubbard 1 guest appearances Detective Lawrence Xavier 1 guest appearances Captain Leahy 1 guest appearances Linda Salk 1 guest appearances Ari Cohen 1 guest appearances Charlie Hubbard 1 guest appearances Dealer 1 guest appearances Detective #1 1 guest appearances Detective #2 1 guest appearances Uniform #1 1 guest appearances ⇤ « 1 2 3 4 » ⇥