Title The Wild Rover
Two-Sentence Summary When a baker with connections to the Staten Island mob is found dead, Ryan returns to the undercover life he left behind in order to become a homicide detective. While he works to bring down the mob from the inside and protect a former love, his struggle to start a family with his wife, Jenny, is brought to the forefront.
Favorite Line “Don’t let the looks fool you, boys. You don’t want to mess with her either.” (Ryan, about Beckett)
My Thoughts It took this episode to prove something to me once and for all: My name is Katie, and I am a Kevin Ryan fangirl. I always thought I was more of an “Esposito girl” (because, let’s be honest, you’re usually one or the other), but my taste in Castle episodes says otherwise. Earlier this season, I found myself surprisingly disinterested in the Esposito-centric “Under the Influence,” but I have to admit; both Ryan-centric episodes in the series so far (this one and Season Four’s “Kick the Ballistics”) have been among my favorites in their respective seasons. I’m not sure if it’s the way he’s written or the way Seamus Dever plays him (or, more likely, a combination of those two factors), but Ryan makes a really solid centerpiece for an episode.
I think so much of what makes Ryan appealing to me and to many in the audience is his courage of conviction. If there’s been one consistent thing about this character from the beginning, it’s his desire to do the right thing. Ryan does the right thing even when it’s not the popular choice; he does the right thing even when it could cost him friendships he’s spent years building (see last season’s finale for the perfect example of that). That profoundly moral center was at the heart of this episode on so many levels. Ryan wanted to do the right thing for Jenny in giving her a baby. He wanted to do the right thing for Siobhan in protecting her. And he wanted to do the right thing for the victim by getting justice by going undercover once more, no matter the danger it would put him in. What I loved most about the plot of this episode was that it made sense for what we already know about Ryan.
We know that Ryan trusts authority figures more than any other character on this show, and that makes even more sense after learning that he was undercover for such a long time. If he didn’t follow orders and trust the people he was working for, he would have been in even greater danger than he already was. We know that Ryan always tries to be an upstanding cop, and now we know that some of that probably comes from his guilt over leaving Siobhan the way he did. We know that Ryan is probably the most loyal character on this show, and that made his relationship with Siobhan even more realistically painful. As I’m writing this, I’m starting to realize just how well-developed Kevin Ryan is as a character. Bravo, Castle writers (and Dever) for creating a secondary character on a procedural as rich and nuanced as Ryan has become.
I do think that so much of this episode’s success at building a strong and believable backstory came from Dever’s performance. Throughout the course of the show, Ryan has been a steadfast champion of doing things by-the-book, but he’s never come across as preachy or condescending. So much of that has to do with the earnest way Dever plays him. In this episode especially, you could see the internal struggle Ryan faced between doing the right thing as a husband and doing the right thing as a detective. Dever made you feel the stakes for his character without overacting, which isn’t an easy task. There was a certain gravitas he carried with him in his undercover scenes that had me holding my breath because I understood how much pressure Ryan was under to succeed.

