Shemar Moore Daniel "Hondo" Harrelson Actor Stephanie Sigman Jessica Cortez Actor Alex Russell Jim Street Actor Jay Harrington David "Deacon" Kay Actor Lina Esco Christina "Chris" Alonso Actor Kenny Johnson Dominique Luca Actor David Lim Victor Tan Actor Patrick St. Esprit Commander Robert Hicks Actor Amy Farrington Lieutenant Piper Lynch Actor Obba Babatundé Daniel Harrelson Sr. Guest Star Deshae Frost Darryl Guest Star Gabrielle Dennis Brianna Guest Star Cory Hardrict Nate Guest Star Jared Farid Ward Detective Branson Guest Star Lovensky Jean-Baptiste Isaac Guest Star Dalia Phillips Tamika Guest Star Jason Huber Cyfort Guest Star Veena Bidasha Dr. Cunningham Guest Star Eileen Grubba Pam Guest Star James C. Burns Ed Hawks Guest Star Leif Gantvoort Upton Guest Star Aaron Rahsaan Thomas Executive Producer, Writer Shawn Ryan Executive Producer Justin Lin Executive Producer Neal H. Moritz Executive Producer Marney Hochman Executive Producer Danielle Woodrow Executive Producer Pavun Shetty Executive Producer Lin Oeding Director