Special Guest Stars Kate Walsh as Dr. Addison Forbes Montgomery Guest Stars Kim Raver as Dr. Teddy Altman Robert Baker as Dr. Charles Percy Nora Zehetner as Dr. Reed Adamson Leven Rambin as Sloan Riley Sinqua Walls as Tom Kates Cynthia Stevenson as Ruthie Carlin Co Starring Mark Saul as Dr. Steve Mostow James DuMont as Sheldon Morris Kerri Higuchi as Dr. Elizabeth Chen Jarrod Crawford as Dr. Oslow Giselle Jones as Jessie Kates Stephon Fuller as Gregor Amol Shah as Dr. Rob Stanton