There might be wedding bells for Castle (Nathan Fillion) and Beckett (Stana Katic) on the season 6 finale of Castle.

"Things Come Up" As Castle & Beckett Prepare For Wedding?

The engaged crime-fighting duo may officially tie the knot in the season 6 finale, according to new spoilers by TVLine. The new report claims the season 6 finale is titled For Better or For Worse, though the title is unconfirmed by ABC. This title is a probable nod to the famous traditional wedding vows.

The report also notes that one of the guest roles set to be cast for the episode is an officiant. While it's not immediately clear that this is a marriage officiant, this information coupled with the episode title suggests that Castle fans may finally be treated to the big wedding.

Beckett to Face Off Against Mother's Murderer?

Fans are likely going to have to wait until May to see the potential wedding of the show's leads.

Before the big ceremony, however, there are still a few more cases to be solved. The next episode of Castle is titled That '70s Show and features Castle and Beckett talking to a man named Harold Metzger, who is linked to '70s crime boss Vince Lamotta.

TVLine has also revealed the next two episodes of the season after That '70s Show. The report claims that episode 21 is titled Law & Boarder, a clever spin on Law & Order, while episode 22 is titled Veritas, the Roman word for "truth."

Castle season 6 airs Mondays at 10 p.m. on ABC.

Watch the promo for the next episode of Castle here:

Tags: Castle television ABC