cast
Series Regulars
Kate Walsh
as Dr. Addison Montgomery
Paul Adelstein
as Dr. Cooper Freedman
Amy Brenneman
as Dr. Violet Turner
Taye Diggs
as Dr. Sam Bennett
KaDee Strickland
as Dr. Charlotte King
Tim Daly
as Dr. Pete Wilder
Brian Benben
as Dr. Sheldon Wallace
Audra McDonald
as Dr. Naomi Bennett
Chris Lowell
as William "Dell" Parker
Caterina Scorsone
as Dr. Amelia Shepherd
Benjamin Bratt
as Dr. Jake Reilly
Recurring & Guests
Griffin Gluck
as Mason Warner
Matt Long
as Dr. James Peterson
James Morrison
as William White
Stephen Amell
as Scott Becker
Grant Show
as Archer Montgomery
Amanda Detmer
as Morgan Gellman
Amanda Foreman
as Katie Kent
Jay Harrington
as Dr. Wyatt Lockhart
Sharon Leal
as Sonya
Cristián de la Fuente
as Dr. Eric Rodriguez
Nicholas Brendon
as Lee McHenry
Stephen Collins
as Addison's Father
Josh Hopkins
as Dr. Noah Barnes
JoBeth Williams
as Bizzy Montgomery
Justina Machado
as Stephanie Kemp
Anika Noni Rose
as Corrine Bennett
David Sutcliffe
as Officer Kevin Nelson