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 Michael Hogan Dr. Albert Nolan Guest Star Tasso Feldman Dr. Irving Feldman Guest Star Denitra Isler Nurse Hundley Guest Star Jessica Miesel Nurse Jessica Moore Guest Star Duke Davis Roberts Ethan Eriksten Guest Star Heather Mazur Magdalena Axenberg Guest Star Erin Ownbey Holly Caswith Guest Star Emily Grace Dunn Cat Crisforth Guest Star Joshua Harto Mike (Michael) Jonah Rellie Guest Star Jennifer Sears Keitra Guest Star Ana Mackenzie Marion Guest Star Javier Vazquez Jr. Zombie Guest Star Gissette Valentin EMT 1 Guest Star Jacobi Hollingshed EMT 2 Guest Star Ren Haggerty Lil Superhero 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