Mary Lynn Rajskub And Patrick Fischler To Grey's Anatomy image

(Nikki Nelson/Wenn.com, Apega/Wenn.com)

Guest couple!

Actress Mary Lynn Rajskub (ex-Chloe, "24," "How To Be A Gentleman"), and actor Patrick Fischler (ex-Dharma, "Lost," "Mad Men," "Californication") will guest star on the Thursday May 10 episode of "Grey's Anatomy." TV Line reports that they will play a couple that shows up at Seattle Grace Hospital in the middle of their third honeymoon suffering mysterious symptoms.

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- Candace Young