Kiefer Sutherland Tom Kirkman Actor, Executive Producer Natascha McElhone Alex Kirkman Actor Paulo Costanzo Lyor Boone Actor Adan Canto Aaron Shore Actor Italia Ricci Emily Rhodes Actor LaMonica Garrett Mike Ritter Actor Zoe McLellan Kendra Daynes Actor Ben Lawson Damian Rennett Actor Kal Penn Seth Wright Actor Maggie Q Hannah Wells Actor Reed Diamond John Forstell Guest Star Jake Epstein Chuck Russink Guest Star Jim Piddock Dr. Rune Guest Star Dillon Casey Detective Blakey Guest Star Kristoffer Polaha David Sheridan Guest Star David Guggenheim Executive Producer Mark Gordon Executive Producer Simon Kinberg Executive Producer Nicholas Pepper Executive Producer Jeff Melvoin Executive Producer Suzan Bymel Executive Producer Aditya Sood Executive Producer Keith Eisner Writer Chris Grismer Director