Main Characters Officer Andy McNally 35 main appearances Officer Dov Epstein 35 main appearances Detective Traci Nash 35 main appearances Officer Gail Peck 35 main appearances Sergeant Oliver Shaw 35 main appearances Detective Sam Swarek 35 main appearances Officer Chris Diaz 30 main appearances Officer Nick Collins 30 main appearances Officer Chloe Price 23 main appearances Sergeant Frank Best 16 main appearances Senior Officer Marlo Cruz 13 main appearances Detective Luke Callaghan 9 main appearances Training Officer Noelle Williams 8 main appearances Detective Jerry Barber 7 main appearances Sergeant Boyko 5 main appearances Detective Jo Rosati
Recurring Guest Characters Young Boy 1 guest appearances Buyer #3 1 guest appearances Forensic Tech 1 guest appearances Buyer #1 1 guest appearances The Steerer 1 guest appearances Jackson Irving 1 guest appearances The Runner 1 guest appearances Wendy 1 guest appearances Nurse 1 guest appearances Wino 1 guest appearances Danielle 1 guest appearances ER Doctor 1 guest appearances Beautiful Woman 1 guest appearances Booking Sergeant 1 guest appearances Wendy 1 guest appearances ER Doctor 1 guest appearances Monica Dunn 1 guest appearances Alex 1 guest appearances Cesar Medina 1 guest appearances Teddy Fisher 1 guest appearances ⇤ « 5 6 7 8 9 10 11 12 13 14 » ⇥