Guest Stars Tasso Feldman as Dr. Irving Feldman Jessica Miesel as Nurse Jessica Moore Corbin Bernsen as Kyle Nevin Radek Wallace Lord as Grayson Betournay Julianna Guill as Jessie Nevin Miles Gaston Villanueva as Dr. Alec Shaw Julia Campbell as Vivian Betournay Stephanie Hunt as Shira Smook Christopher B. Duncan as Brett Slater Robert Clendenin as William Harper Patrick Davis as Fritz Rawlins Co Starring Denitra Isler as Nurse Ellen Hundley Vince Foster as Dr. Paul Chu Ann Marie Gideon as Nurse Sylvie Pund Andrea Laing as Transplant Coordinator Vanessa Luling Ashritha Kancharla as Tech Justin Randell Brooke as Receptionist Neva Howell as Sour Apple Riley Hough as Ralph Jibre Hordges as Monroe Sarah Girma as Nurse Eleanor Robert