- Season 1 Episode 4
No Man's Land
Cristina's encounter with a former nurse, now a patient at Seattle Grace, changes her forever; Derek and Meredith treat a construction worker who has miraculously survived an injury but is now faced with tough decisions about his future; and a patient recognizes Izzie.
Ellen Pompeo as Meredith Grey
Patrick Dempsey as Derek Shepherd
Sandra Oh as Cristina Yang
Isaiah Washington as Preston Burke
Katherine Heigl as Isobel "Izzie" Stevens
Justin Chambers as Alex Karev
T.R. Knight as George O'Malley
Chandra Wilson as Miranda Bailey
James Pickens, Jr. as Richard Webber.
Anna Maria Horsford as Liz Fallon
F.J. Rio as Jorge Cruz
Rick Humphrey as Taylor Nichols
Valerie Cruz as Zona Cruz.