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 Tom Amandes Charlie Jensen Guest Star Fran Kranz Brian Guest Star Zoe Perry Lisa Guest Star Kimberly Kevon Williams Jodie Guest Star Ian Nelson Kirk Jensen Guest Star René Ashton Ellen Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Marti Noxon Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer Mike Ostrowski Writer Tom Verica Director