Mark Valley Actor Chi McBride Actor Jackie Earle Haley Actor Courtney Ford Guest Star Alessandro Juliani Guest Star Ali Liebert Guest Star Robert Weiss Guest Star Sean Owen Roberts Guest Star David Nykl Guest Star Amy Acker Guest Star Summer Glau Guest Star Miracle Laurie Guest Star Reed Diamond Guest Star Alan Tudyk Guest Star Adair Tishler Guest Star Maurissa Tancharoen Guest Star Felicia Day Guest Star Zack Ward Guest Star Nate Dushku Guest Star Noah Harpster Guest Star Christian Monzon Guest Star Brandon Dieter Guest Star Jonathan E. Steinberg Executive Producer McG Executive Producer Simon West Executive Producer Brad Kern Executive Producer