Grey's Anatomy

Season 6 Episode 4

Tainted Obligation

12
Aired Thursday 8:00 PM Oct 08, 2009 on ABC
AIRED:
8.7
out of 10
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Episode Summary

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.

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Ellen Pompeo

Ellen Pompeo

Dr. Meredith Grey

Eric Dane

Eric Dane

Dr. Mark Sloan

Sandra Oh

Sandra Oh

Dr. Cristina Yang

Kevin McKidd

Kevin McKidd

Dr. Owen Hunt

Patrick Dempsey

Patrick Dempsey

Dr. Derek Shepherd

Chyler Leigh

Chyler Leigh

Dr. Lexie Grey

Ralph Waite

Ralph Waite

Irving Waller

Guest Star

Tom Amandes

Tom Amandes

Charlie Waller

Guest Star

Isabella Hofmann

Isabella Hofmann

Irene Waller

Guest Star

Jeff Perry

Jeff Perry

Thatcher Grey

Recurring Role

Mark Saul

Mark Saul

Intern Steve

Recurring Role

Payton Silver

Payton Silver

Dr. Knox

Recurring Role

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Trivia, Notes, Quotes and Allusions

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