Matt Czuchry Dr. Conrad Hawkins Actor Bruce Greenwood Dr. Randolph Bell Actor Emily VanCamp Nicolette Nevin Actor Manish Dayal Dr. Devon Pravesh Actor Shaunette Renée Wilson Dr. Mina Okafor Actor Malcolm-Jamal Warner Dr. AJ Austin Actor Jane Leeves Dr. Kit Voss Actor Glenn Morshower Marshall Winthrop Actor Jenna Dewan Julian Lynn Guest Star Tasso Feldman Dr. Irving Feldman Guest Star Patrick Walker Micah Stevens Guest Star Tasie Lawrence Priya Nair Guest Star Michael Hogan Dr. Albert Nolan Guest Star Denitra Isler Nurse Hundley Guest Star Jessica Miesel Nurse Jessica Moore Guest Star Lana Young Dr. Mary Osder Guest Star Tamara Whatley Peyton Guest Star Boo Arnold Mr. Alderwood Guest Star Joshua Brady Gunner, Aaron Holt Guest Star Ian Gregg Jokester, Mason Buck Guest Star Nikki SooHoo Shy Girl, Bai Liu Guest Star Kelly Tippens ICU Nurse Linda Guest Star Mary Shaw ICU Doctor Mary Bolton Guest Star Bergman Freedman Jack Alderwood Guest Star Brooke Jaye Taylor Mrs. Alderwood Guest Star Abigail Rose Cornell Abby Arlen Guest Star Kermit Rolison Rupert Warden Guest Star Jordan Patrick Nerd, Justin Arkman Guest Star Antoine Fuqua Executive Producer Amy Holden Jones Executive Producer David Boorstein Executive Producer Oliver Obst Executive Producer Phillip Noyce Executive Producer Todd Harthan Executive Producer Rob Corn Executive Producer