Gary Sinise Unit Chief Jack Garrett Actor Alana De La Garza Clara Seger Actor Daniel Henney Matthew Simmons Actor Tyler James Williams Russ "Monty" Montgomery Actor Annie Funke Mae Jarvis Actor Kirsten Vangsness Guest Star Aline Elasmar Guest Star Anthony Azizi Guest Star Sam Adegoke Guest Star Junes Zahdi Guest Star Tina Lifford Guest Star Naz Deravian Guest Star Ammar Daraiseh Guest Star Danny Hamouie Guest Star Mark Gordon Executive Producer Erica Messer Executive Producer Nicholas Pepper Executive Producer Adam Glass Writer Rod Holcomb Director