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 James Remar Dr. Gibson Guest Star David Grant Wright Troy Guest Star Greg Ainsworth Bob Yates Guest Star Preston Flagg Alex Guest Star Tom Virtue Dr. Warren Guest Star William Christopher Stephens Bill Guest Star Alice Lo Suchin Guest Star Raymond Ma Kwan Guest Star Tessa Munro Dr. Campbell Guest Star Matthew Lenhart O.R. Nurse Guest Star Jossie Thacker Anesthesiologist Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer Craig Turk Executive Producer Steve Blackman Executive Producer Sheila R. Lawrence Writer Donna Deitch Director