Matt Czuchry Dr. Conrad Hawkins Actor Emily VanCamp Nicolette Nevin Actor Manish Dayal Dr. Devon Pravesh Actor Shaunette Renée Wilson Dr. Mina Okafor Actor Bruce Greenwood Dr. Randolph Bell Actor Moran Atias Renata Morali Actor Merrin Dungey Claire Thorpe Actor Melina Kanakaredes Dr. Lane Hunter Actor Malcolm-Jamal Warner Dr. AJ Austin Guest Star Tasso Feldman Dr. Irving Feldman Guest Star Dot Marie Jones Meg Mullins Guest Star Patrick Walker Micah Stevens Guest Star Gregory Alan Williams Dr. John Peterson Guest Star Mario Davila Dr. Luke Romano Guest Star Atkins Estimond Dr. Casey Mitchell Guest Star Britt Rentschler Dr. Sarah Cooper Guest Star Alan Heckner Elias Everett Guest Star Glenn Morshower Marshall Winthrop Guest Star Jolene Purdy Olivia Tan Guest Star David Clyde Carr Robert Hayden Guest Star Geordie White Dr. Dana Walters Guest Star Greg Allan Martin Dr. Adrian Hill Guest Star Rebecca Tilney Stacey Leonard Guest Star Jessica Miesel Nurse Jessica Moore Guest Star Mike Forbs Harold Mabbot Guest Star Chris Mayers Dr. Steven Butler Guest Star Vince Foster Dr. Paul Chu Guest Star Rishik Patel Dr. Jaime Frederick Guest Star Mark Cabus Cameron Pressly Guest Star Al Mitchell Wendal McKee Guest Star Joe Knezevich Donald Cyrus Guest Star Mara Nicole Hall Jenny West Guest Star Karen Reynolds Mrs. Florence Abby 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