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 Grant Show Dr. Archer Forbes Montgomery Guest Star Jayne Brook Dr. Meg Porter Guest Star Cullen Douglas Hal Jarvis Guest Star Darby Stanchfield Tess Milford Guest Star Scott Michael Campbell Gregory Milford Guest Star GeffriMaya Maya Bennett Guest Star David Sutcliffe Officer Kevin Nelson Guest Star Tom Bresnahan Warren Pearl Guest Star Liz Torres Judge Ortiz Guest Star Ajay Mehta Surgeon Guest Star George Griffith Attending Guest Star Karen Strassman Anesthesiologist Guest Star Mike Madrigal Foreman Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Marti Noxon Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer Jon Cowan Writer Robert Rovner Writer James Frawley Director