Season 6, Episode 4 Tainted Obligation

First Aired: October 8, 2009

Meredith must treat her father, Thatcher (Jeff Perry), who's suffering from liver failure; Izzie empathizes with a tumor-riddled patient; and Mark tricks Cristina into assisting on an unusual surgery because he's annoyed with her competitive nature. Irving Waller: Ralph Waite.

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  • Premiered: March 27, 2005
  • Rating: TV-14
  • Premise: Doctors at a Seattle teaching hospital hone their bedside manners on and off the job in this medical drama. (more)

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