Guest Stars Jesse Williams as Dr. Jackson Avery Sarah Drew as Dr. April Kepner Robert Baker as Dr. Charles Percy Michael O'Neill as Gary Clark Mandy Moore as Mary Portman Ryan Devlin as Bill Portman Tom Irwin as Officer Hancock Adam Shapiro as Pete Kelsey Scott as Karen Campbell Jason Graham as Ken Campbell China Anderson as Ruby Campbell Co Starring Melvin Abston as Cop Jay Sefton as Officer #2 Kevin Dunigan as SWAT Guy Liz Wicker as Officer #1
