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"House"-hold name: Jennifer Grey as Abbey.
"House"-lights: Abbey is the mother of an infant daughter who is displaying signs of a life-threatening illness. As House investigate her daughter's developing symptoms, Abbey is faced with a treatment decision for her newborn that could affect not only her baby's life but her own.
Out-"House": Best known for her work on "Dirty Dancing," Grey is the daughter of other "House" guest Joel Grey and can currently be seen on "Dancing With the Stars."