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 Peter Onorati Jeff Mumford Actor David Lim Victor Tan Actor Patrick St. Esprit Commander Robert Hicks Guest Star Louis Ferreira Buck Guest Star Bre Blair Annie Kay Guest Star Jolene Purdy Rachel Guest Star Shane Coffey Kevin Lynch Guest Star Marcus Giamatti Professor Lasky Guest Star Lindsay Musil Maya Guest Star Michael Benyaer Tarek Guest Star Freda Foh Shen Dean Hargrove Guest Star Mandy June Turpin Agent Conley Guest Star Sabrina Revelle Lauren Guest Star Ellie Bildner Paul Guest Star Lynn Downey Nurse Guest Star Sean Edwards Adam Guest Star Dominic Pace Fireman Guest Star Cooper Andrews Reggie Lee Guest Star Erin Barnes Maria Guest Star Aaron Rahsaan Thomas Executive Producer 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 Kent Rotherham Writer Greg Beeman Director