Exclusive: Grey's Anatomy Admits Mary Lynn Rajskub, Lost Alum Patrick Fischler

Erstwhile 24 bacon-saver Mary Lynn Rajskub and Lost alum Patrick Fischler will both guest-star in the penultimate episode of Grey’s Anatomy Season 8, TVLine has learned exclusively.

In the episode, airing May 10, Rajskub and Fischler will play a couple in the midst of their third honeymoon when they come to Seattle Grace complaining of mysterious symptoms.

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Rajskub, best known of course for her run as 24‘s Chloe, most recently appeared on CBS’ short-lived freshman sitcom How to Be a Gentleman.

Fischler’s TV credits include arcs on Lost (as Dharma security wonk Phil), Mad Men and Southland, and guest spots on a litany of shows, most recently Californication.

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The Grey’s finale airs the following Thursday, May 17.