'Castle': 'Prison Break' Alum to Come Between Castle and Beckett (Exclusive)

Jodi Lyn O'Keefe

Just as Castle (Nathan Fillion) and Beckett (Stana Katic) were finally going there, a new threat to the emerging couple is poised to emerge on ABC's Castle. 

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Prison Break's Jodi Lyn O'Keefe has been tapped to guest star on the ABC drama's upcoming fifth season, The Hollywood Reporter has learned exclusively.

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O'Keefe will play Kristina Coterra, a sultry and voluptuous entertainment reporter at WHNY who shows more than a professional interest in Castle in the second episode of the season, titled "Cloudy With a Chance of Murder."

Following years of will-they-or-won't-they romantic tension, Beckett was last seen leading her partner in crime to the bedroom following a steamy make-out session in the fourth season finale.

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O'Keefe's credits, including starring as Gretchen Morgan on Fox's Prison Break, include Two and a Half Men, The Finder and Boston Legal. She's repped by Vincent Cirrincione Associates and Stone Meyer.

Castle returns Monday, Sept. 24 at 10 p.m. on ABC. 

Email: Lesley.Goldberg@thr.com; Twitter: @Snoodit