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 Currie Graham Guest Star French Stewart Guest Star Shane Johnson Guest Star Katie Lowes Guest Star Stephen Lunsford Guest Star Porter Kelly Guest Star Jensen Leflore Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer, Director Craig Turk Executive Producer, Writer Steve Blackman Executive Producer, Writer