Matt Czuchry Dr. Conrad Hawkins Actor Bruce Greenwood Dr. Randolph Bell Actor Manish Dayal Dr. Devon Pravesh Actor Malcolm-Jamal Warner Dr. AJ Austin Actor Jane Leeves Dr. Kit Voss Actor Jessica Lucas Billie Sutton Actor Anuja Joshi Dr. Leela Devi Actor Tasso Feldman Dr. Irving Feldman Guest Star Denitra Isler Nurse Ellen Hundley Guest Star Kaley Ronayne Dr. Kincaid Sullivan Guest Star Aneesha Joshi Padma Devi Guest Star Summer Selby Carol Austin Guest Star Remington Blaire Evans Gigi Hawkins Guest Star David de Vries Dr. Frank Abernathy Guest Star Leslie France Dr. Dianne Elkins Guest Star Alain Uy Albert Soriano Guest Star Michelle Krusiec Grace Soriano Guest Star Elizabeth Grullon Mariana Gonzalez Guest Star Crystal Rivers Emily Benesch Guest Star David A. MacDonald Agent Todd Baker Guest Star Lesa Wilson Agent Joyce Royal Guest Star Ethan Corn Paramedic John Akerman Guest Star Seth Zane Robbins Jordan Guest Star Ciara Caffrey Female Student 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