What's ahead for Mr. and Mrs. Castle in the final 'Castle' episodes of 2015? The final three episodes of ABC's Castle for 2015 will each deal with Rick Castle (Nathan Fillion) and Kate Beckett's (Stana Katic) relationship in varying ways.

What's going down in Adam Baldwin's return to 'Castle'? How will Ethan Slaughter (Adam Baldwin) figure into the current season of ABC's Castle? Where Will Kate Beckett Be Living After Separating From Rick on 'Castle'? Slaughter is returning for another episode of Castle, reuniting with his former Firefly costar Nathan Fillion, who plays Castle on the series.

How long will Rick and Kate be "separated"? It seems that Castle (Nathan Fillion) and Beckett (Stana Katic) will remain "broken up" through the fall episodes of ABC's Castle.

How will the break work out? What will the new living situation be with Beckett (Stana Katic) and Castle (Nathan Fillion) on ABC's Castle? Did 'Castle' Just Jump The Shark? Beckett told Castle that she needed to take a break from their relationship at the end of last week's episode, devastating fans everywhere.