Tainted Obligation
Show: Grey's Anatomy --> Season: 6 - Season 6
AirDate: 10/8/2009
Runtime: 43
Voting: 6.8 (6)

Overview: 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.
Jeff Perry
Thatcher Grey
Tom Amandes
Tom Waller
Isabella Hofmann
Irene Waller
Phil Abrams
Dr. Nelson
Payton Silver
Dr. Knox
Ralph Waite
Irving Waller
Jocko Sims
Randy Helsby
Kristen Ariza
Angela
Ursula Whittaker
Angry Attending
Mark Saul
Intern Steve