Guest Stars Payton Silver as Dr. A. Knox Loretta Devine as Adele Webber Scott Foley as Henry Burton Gordon James as Nurse Gregory Rachael Taylor as Dr. Lucy Fields Daniel Sunjata as Nurse Eli Peter MacNicol as Dr. Robert Stark Marina Sirtis as Sonya Amin Pej Vahdat as Tarik Amin Rick Peters as Sean Greene Colleen McDermott as Clara Greene Denice J. Sealy as Nurse