The Many Faces of Castle's Detective Kate Beckett Pt. 2 (VIDEO)

Check out this awesome fan video (set to Duffy's "Mercy") of Detective Kate Beckett and her many adorable faces throughout Castle Seasons 3 and 4. ICYMI, here's Pt. 1 from Seasons 1 and 2, set to Christina Aguilera's "Candyman." Enjoy!

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