Alyssa Milano: Have fun stormin' da 'Castle'

alyssamilano-290.jpg Alyssa Milano is pairing up with Nathan Fillion on ABC's "Castle" in early 2010.

According to The Hollywood Reporter, Milano has signed on to guest-star as an ex-lover of Castle's, which is sure to please his colleague Kate Beckett. Let the snarky and jealous passive-aggressiveness begin!

Never fear, those of you eagerly anticipating Milano's midseason comedy "Romantically Challenge": Her stint on "Castle" is for one episode only and should not interfere at all with her new show. No premiere date for "Romantically Challenged" has been announced yet, but as far as time-slot goes... Kelsey Grammer's "Hank" just got yanked. Just sayin'.

Where else could Alyssa Milano pop up? We'd love to see her show off her singing chops on "Glee" or reprise her role of Jennifer Mancini on "Melrose Place." Who doesn't want to see an Alyssa Milano/Heather Locklear catfight? Nobody, that's who.

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