Kiefer Sutherland Tom Kirkman Actor, Executive Producer Natascha McElhone Alex Kirkman Actor Adan Canto Aaron Shore Actor Italia Ricci Emily Rhodes Actor LaMonica Garrett Mike Ritter Actor Kal Penn Seth Wright Actor Maggie Q Hannah Wells Actor Tanner Buchanan Leo Kirkman Guest Star Virginia Madsen Kimble Hookstraten Guest Star Kevin R. McNally Harris Cochrane Guest Star Elizabeth Vargas Herself Guest Star Malik Yoba Jason Atwood Guest Star Ashley Zukerman Peter MacLeish Guest Star Colin Woodell Tyler Richmond Guest Star Nicholas Massouh Majid Nassar Guest Star Mckenna Grace Penny Kirkman Guest Star David Guggenheim Executive Producer Simon Kinberg Executive Producer Mark Gordon Executive Producer Nicholas Pepper Executive Producer Suzan Bymel Executive Producer Aditya Sood Executive Producer Jennifer Johnson Writer Paul Redford Writer Sergio Mimica-Gezzan Director