Mandy Patinkin Dr. Jeffrey Geiger Actor Adam Arkin Dr. Aaron Shutt Actor Christine Lahti Dr. Kathryn Austin Actor Thomas Gibson Actor Vondie Curtis-Hall Dr. Dennis Hancock Actor Roxanne Hart Actor Peter MacNicol Actor Peter Berg Dr. Billy Kronk Actor Jayne Brook Dr. Diane Grad Actor Héctor Elizondo Dr. Phillip Watters Actor Jamey Sheridan Actor Erica Ortega Guest Star Ron Silver Guest Star Tyrin Turner Guest Star Kathy Najimy Guest Star Helena Lewis Guest Star Nathan Watt Guest Star Maggie Murphy Guest Star Bert Rosario Guest Star Stephen Elliott Guest Star John Tinker Executive Producer, Writer Michael Dinner Executive Producer Bill D'Elia Director Arvin Brown Director Randy Roberts Director Marty Davidson Director Jerry London Director James C. Hart Director Thomas Schlamme Director Mel Damski Director Michael Engler Director Jeremy Kagan Director Donald Petrie Director Kevin Arkadie Writer Sara B. Charno Writer David E. Kelley Writer Patricia Green Writer Jennifer Levin Writer Thomas M. Heric Writer