SpoilerTV Image Archive | Gallery | Castle | Season 6 | Promotional Episode Photos | Episode 6.23 - For Better Or Worse | 135524_0133

CASTLE - "For Better or Worse" - Castle and Beckett's long-awaited wedding is almost here, but when a shocking surprise threatens to ruin the big day, they are sent on a wild mission filled with masked men, angry bikers and a charming ne'er-do-well from Beckett's past (guest star Eddie McClintock as Rogan O'Leary). MONDAY, MAY 12 (10:01-11:00 p.m., ET) on the ABC Television Network. (Photo by Danny Feld/ABC via Getty Images)

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