Nancy Travis will appear in an upcoming episode of Grey's Anatomy.

Travis will play Allison, a patient in Derek's Alzheimer's clinical trial, according to TV Guide. Her 10-year-old son takes more care of her than the other way around, which will make Dr. Stark (Peter MacNicol) insist that Social Services be contacted.

The 49-year-old is known for So I Married an Axe Murderer and 3 Men and a Baby. Travis recently starred in The Bill Engvall Show and appeared on Desperate Housewives.

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