4. Tainted Obligation (2009)
When Meredith and Lexie's father, Thatcher, returns to the hospital with a failed liver, it's up to Meredith to save his life. Meanwhile, Izzie empathizes with a patient riddled with tumors, as Mark, annoyed with Cristina's competitive zeal, tricks her into assisting on an unusual surgery.
Release date: 2009-10-08
User rating:
7.4 / 10
9 votes
Season number: 6
Episode number: 4
Runtime: 43 minutes
Director: Tom Verica
Writer: Jenna Bans
Guest stars
Cast
Ellen Pompeo
as Meredith Grey
Chandra Wilson
as Miranda Bailey
Sandra Oh
as Cristina Yang
James Pickens Jr.
as Richard Webber
Kevin McKidd
as Owen Hunt
Katherine Heigl
as Izzie Stevens
Kim Raver
as Teddy Altman
Justin Chambers
as Alex Karev
Sara Ramirez
as Callie Torres
Jessica Capshaw
as Arizona Robbins
Patrick Dempsey
as Derek Shepherd
Eric Dane
as Mark Sloan
Chyler Leigh
as Lexie Grey
Rest of guest stars - click here to expand
Payton Silver - Dr. Knox