Special Guest Stars Kate Walsh as Dr. Addison Forbes Montgomery Guest Stars Loretta Devine as Adele Webber Sarah Utterback as Nurse Olivia Harper Scott Michael Campbell as Mr. Hubble Romy Rosemont as Lea Seibert Lukas Behnken as Scott Seibert Co Starring Linda Klein as Scrub Nurse Linda Robin Pearson Rose as Patricia Murphy John Cappon as John the Paramedic Jeremy Rabb as Resident Yvette Cruise as Nurse David Haley as Paramedic #2 Jim Gleason as Dr. Domner Peter Birkenhead as Dr. Orsen Johanna McKay as Grieving Widow Seth Adams as Radiologist