Eoin Macken T.C. Callahan Actor Freddy Rodríguez Michael Ragosa Actor Jill Flint Jordan Alexander Actor Ken Leung Topher Actor Robert Bailey Jr. Paul Actor Brendan Fehr Drew Actor Jeananne Goossen Krista Actor J.R. Lemon Kenny Actor J.J. Soria Javier Castro Guest Star Mercedes López Renard Gina Guest Star José Zúñiga Frank Guest Star Luke Donaldson Marcus Guest Star Gloria Votsis Lydia Guest Star Julie McNiven Marcus' Mother Guest Star Dana Melanie Amanda Guest Star Montse Hernandez Naomi Guest Star Alma Sisneros Nurse Diaz Guest Star Catharine Pilafas Nurse Bardocz Guest Star Steve Mokate Colonel Lee Roberts Guest Star Matthew Page Officer Guest Star Tatanka Means Paramedic 1 Guest Star Gabe Sachs Executive Producer Jeff Judah Executive Producer