Blair Underwood Dr. Ben Turner Actor Michael Warren Ron Harris Actor Hill Harper Dr. Wesley Williams Actor Phil Buckman Dr. Geoffrey Weiss Actor T.E. Russell Dr. Arthur Jackson Actor Viola Davis Nurse Lynette Peeler Actor Maya Rudolph Nurse Grace Patterson Actor Kyle Secor Dr. Raleigh Stewart Actor Gabrielle Union Dr. Courtney Ellis Actor Steven Bochco Executive Producer Paris Barclay Executive Producer Nicholas Wootton Producer