Kate Walsh Dr. Addison Montgomery Actor Tim Daly Dr. Pete Wilder Actor Audra McDonald Dr. Naomi Bennett Actor Paul Adelstein Dr. Cooper Freedman Actor Kadee Strickland Dr. Charlotte King Actor Brian Benben Dr. Sheldon Wallace Actor Caterina Scorsone Dr. Amelia Shepherd Actor Taye Diggs Dr. Sam Bennett Actor Amy Brenneman Dr. Violet Turner Actor Louise Fletcher Frances Wilder Guest Star Nicholas Brendon Lee McHenry Guest Star Kyle Secor Adam Wilder Guest Star Kathryn Meisle Sharon Guest Star Allie Grant Julie Guest Star Blue Deckert Detective Joe Price Guest Star Meg Wolf Woman Guest Star Melissa M. Lambert 4th Floor Nurse Guest Star Jadon Sand Boy Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer, Director Craig Turk Executive Producer Steve Blackman Executive Producer Fred Einesman Writer