Margot robbie as MADELYN ASTRID GREY
[Imagine she's 5,11]
Ellen Pompeo as MEREDITH WREN GREY
Sandra Oh as CRISTINA YANG
Patrick Kempsey as DEREK SHEPHERD
Eric dane as MARK EVERETT SLOAN [6'1"]
Justin Chambers as ALEX KAREV
T. R. Knight as GEORGE O'MALLEY
Katherine Heigl as IZZIE STEVENS
Chandra wilson as MIRANDA BAILEY
James pickens Jr as RICHARD WEBBER