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 Josh Hopkins Dr. Noah Barnes Guest Star Idina Menzel Lisa King Guest Star Brian Benben Dr. Sheldon Wallace Guest Star James Morrison William White Guest Star Melinda Page Hamilton Donna Keating Guest Star Elise Neal Janine Guest Star Matthew St. Patrick Malcolm Guest Star Charlie McDermott Bobby Douglas Guest Star Max Burkholder Ben King Guest Star Adam Lazarre-White Phillip Guest Star Tim Quill Ted Guest Star Meeghan Holaway Barbara Guest Star Micah May Cop Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Marti Noxon Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer Ayanna Floyd Writer Tom Verica Director