C. Thomas Howell stops by Castle for "Swan Song." This is a photo from the 11/12/12 episode.

Jon Huertas plays a critical role on Castle. He's been on board for years as NYPD Detective Javier Esposito.

Rick and Kate are hot on the case as they attempt to get their eyes on LokSat on the Castle season 8 finale.

Castle and Beckett are in a bedroom in this photo. But not for any fun reasons.

Castle tried to tell everyone that this guy was still alive, even after he fell off the bridge into the river.

In the Castle season 1 finale, "A Death in the Family" Kate Beckett is devastated when Castle does the one thing she asked him not to do, look into her mother's murder.

Kate Beckett's ready for work at the 12th precinct on Castle season 6.

Ouch! This is not a sight Castle wants to witness, as Beckett lays a kiss son Demming.

It looks as though Beckett's made it to the latest crime scene but we have just one question.

Fighting off zombies in "Undead Again" is no excuse for poor fashion choices so Kate went with this Doma leather jacket with removable hood and sleeves. Thankfully the undead never touched it in Castle season 4 Episode 22 as it cost $598.

To be honest there are only two things we want to see from this episode and that is Richard Castle...

Things are looking up now that Rick and Kate are in one another's arms. It will get even better when we get to attend their wedding!