Special Guest Stars Jeffrey Dean Morgan as Denny Duquette Guest Stars Kevin McKidd as Dr. Owen Hunt Melissa George as Sadie Harris Mary McDonnell as Dr. Virginia Dixon Ed Lauter as Timothy Miller August Schellenberg as Clay Bedonie Co Starring Mark Saul as Dr. Steve Mostow Nicole Rubio as Paramedic Nicole Cummins Molly Kidder as Dr. Megan Nowland Gloria Garayua as Dr. Graciella Guzman Joseph Williamson as Dr. Pierce Halley Winston Story as Dr. Leo Byrider