Vivian Zink/ABC
Sandra Gonzalez
December 08, 2011 AT 12:00 PM EST

As if Castle fans needed another reason to be eager for the show’s return in January!

EW has learned exclusively that ABC has ordered an additional episode of the series, bringing its season 4 order to a total of 23.

Castle ended its first half of the season Monday and returns Jan. 9 with all-new episodes. The second half of the season will include guest spots from Hilarie Burton as a reality star and Jamie Ray Newman, who will appear in an episode centering around Ryan’s (Seamus Dever) wedding to Jenny (Juliana Dever).

Meanwhile, Castle fans, celebrate the additional hour by commenting with questions for executive producer Andrew Marlowe, who will be talking to EW soon about what’s in store for the second half of the season!

Follow Sandra on Twitter: @EWSandraG

Read more:

‘Castle’ casting scoop: ‘White Collar’ actress Hilarie Burton tapped for Kardashian-esque guest role

‘Castle’ star Stana Katic on tonight’s important scene that will alter Castle and Beckett’s future

‘Castle’: Beckett loses control in ‘Kill Shot’ — EXCLUSIVE VIDEO

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