Season 6 • Episode 4
Tainted Obligation
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2009-10-08
★ 7.8
43 min
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.
Guest Stars
Jeff Perry
Mark Saul
Tom Amandes
Isabella Hofmann
Phil Abrams
Payton Silver
Ralph Waite
Jocko Sims
Kristen Ariza
Ursula Whittaker