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 JoBeth Williams Bizzy Forbes Guest Star Ann Cusack Susan Grant Guest Star Don McManus Bruce Tanner Guest Star Gaby Hoffmann Emily Wendel Guest Star Clare Carey Pam Tanner Guest Star Stefanie Black Assistant D.A. Guest Star Brett DelBuono Justin Tanner Guest Star Shonda Rhimes Executive Producer Betsy Beers Executive Producer Mark Gordon Executive Producer Mark Tinker Executive Producer Craig Turk Executive Producer Steve Blackman Executive Producer Elizabeth Klaviter Writer Stephen Cragg Director