S6 · E4

Tainted Obligation

2009-10-0843 min 8.0

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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.

Guest stars

Jeff Perry
as Thatcher Grey

Mark Saul
as Steve

Tom Amandes
as Tom Waller

Isabella Hofmann
as Irene Waller

Phil Abrams
as Dr. Nelson

Payton Silver
as Dr. Knox

Ralph Waite
as Irving Waller

Jocko Sims
as Randy Helsby

Kristen Ariza
as Angela

Ursula Whittaker
as Angry Attending

Series cast

Ellen Pompeo
as Meredith Grey

Chandra Wilson
as Miranda Bailey

James Pickens Jr.
as Richard Webber

Caterina Scorsone
as Amelia Shepherd

Camilla Luddington
as Jo Wilson

Kevin McKidd
as Owen Hunt

Kim Raver
as Teddy Altman

Jason George
as Ben Warren

Chris Carmack
as Atticus Lincoln

Anthony Hill
as Winston Ndugu

Adelaide Kane
as Jules Millin

Alexis Floyd
as Simone Griffith

Crew

Jenna Bans
Writer

Tom Verica
Director