Goof: Esposito identifies the suspect as Jimmy Wolfinsky, although the suspect's photo has that name, the tab on the file he holds says "Jerry Wolfinsky".
Beckett: You know, I-I think I'm actually gonna miss little Benny.
Castle: Well, who knows? Maybe in a few thanksgivings from now, we'll have a couple Bennys of our own running around.
Alexis: Hey, if you guys have kids in a few years, and I have kids in a few years, they can grow up together.
Castle: And it's ruined.
Beckett: (about the baby costume) A turkey outfit? Really?
Castle: It's a Turkey onesie. It's Thanksgiving. It was expensive, but it's adorable. And like I said, my family dresses up for Thanksgiving.
Beckett: Oh. I'm suddenly getting a clear and frightening visual as to what my future will look like.
Castle: (referring to the baby) I think Lanie's right. I think he is hungry. Um, how about you finish up here? I'll grab a uniform, and we'll just go pick up some stuff for him?
Beckett: You really want to do that?
Castle: Of course. Highly qualified. I have an R.H.D. in child care.
Beckett: And an R.H.D. is...?
Castle: Ruggedly handsome dad.