Guest Stars Jessica Capshaw as Dr. Arizona Robbins Brandon Scott as Intern Ryan Melissa George as Sadie Harris Mary McDonnell as Dr. Virginia Dixon Ben Shenkman as Rob Harmon Jennifer Westfeldt as Jen Harmon Laura Allen as Beth Whitman Peter MacKenzie as Warren Kramer Co Starring Mark Saul as Dr. Steve Mostow Molly Kidder as Dr. Megan Nowland Joseph Williamson as Dr. Pierce Halley Winston Story as Dr. Leo Byrider Kate Anthony as Nurse Kate Susan Merson as Lorraine Martha Boles as Lisa Pollock Eric Payne as Dan Pollock Jamey Dettman as Stacy Pollock