CRISTINA SCRUBS IN ON A RARE SURGICAL PROCEDURE, MUCH TO THE ENVY OF HER FELLOW DOCTORS, ALEX CONTEMPLATES HIS FUTURE MEDICAL SPECIALTY, AND DEREK RECEIVES A SURPRISE VISIT FROM HIS SISTER, ON ABC�S �GREY�S ANATOMY�

Embeth Davidtz (�Junebug,� �Bridget Jones� Diary�) Guest Stars

�Let the Angels Commit� -- Cristina scrubs in on the rare �humpty dumpty� procedure, much to the envy of her fellow doctors, Alex questions his future medical specialty, George and Addison work with a pregnant woman with an unusual dilemma, and Derek receives a surprise visit from his sister, on �Grey�s Anatomy,� THURSDAY, DECEMBER 28 (9:00-10:01 p.m., ET) on the ABC Television Network. (Rebroadcast. OAD 11/3/06)

�Grey�s Anatomy� stars 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, Kate Walsh as Addison Shepherd, Sara Ramirez as Callie Torres and Eric Dane as Mark Sloan.

Guest cast: Jillian Bach as Gretchen, Edwin Hodge as Greg, Liza Lapira as Noelle, Francesca P. Roberts as Estelle, Embeth Davidtz as Nancy, Patricia Bethune as Nurse Ginger, Moe Irvin as Nurse Tyler, Jeremy Rabb as resident #1, Yvette Cruise as scrub nurse, Martin Yu as resident #2, Paula Weston Solano as OB nurse and Jack Axelrod as really old guy.

�Let the Angels Commit� was written by Stacy McKee and directed by Jessica Yu.

�Grey�s Anatomy� is broadcast in 720 Progressive (720P), ABC�s selected HDTV format, with 5.1-channel surround sound and Spanish audio via SAP.

This program carries a TV-14 parental guideline.