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 Christopher Lowell William "Dell" Parker Actor Taye Diggs Dr. Sam Bennett Actor Amy Brenneman Dr. Violet Turner Actor Brian Benben Dr. Sheldon Wallace Guest Star Jayne Brook Dr. Meg Porter Guest Star Andy Milder Doug Adams Guest Star Joan McMurtrey Jennifer Debray Guest Star Noah Bean Shawn Guest Star Ivar Brogger Ronald Debray Guest Star David Sutcliffe Officer Kevin Nelson Guest Star Jim Gleason Detective Fallon Guest Star Sean Moran Judge McLennan Guest Star Jillian Bowen Renee Guest Star Nikki Tuazon Waitress Guest Star Karen Strassman Anesthesiologist Guest Star Shonda Rhimes Executive Producer, Writer Betsy Beers Executive Producer Marti Noxon Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer, Director