The missing Girl, Daisy Thorne, is named after Poppy Montgomery's real life sisters, Rosie Thorne and Daisy Yellow.
Goof: When Daisy talks to Samantha at the bus stop, Samantha doesn't tell Daisy about the conversation between Curtis and Daisy's dad. Since Samantha also doesn't explain how they found her there, it's unlikely that Daisy expects Curtis to have kept quiet about her whereabouts.
Goof: Although the agents claim they don't know which parent of Daisy has blood on the knife, DNA analysis would confirm whether it's from the dad or mom.
Danny Taylor: Blonde hair?
Martin Fitzgerald: And blue eyes.
Danny Taylor: Oh, sounds like your type.
Samantha Spade: Hey. Brought you a bagel. (holds up brown paper bag)
Martin Fitzgerald: Ah. Thank you.
Samantha Spade: Listen. I was thinking about your cousin's wedding and, um, I would like to go. (Martin looks at her in surprise) I mean I'm a little nervous to meet your family, obviously, but I think you're right, I think it's time.
Martin Fitzgerald: I already booked my flight.
Samantha Spade: Oh, well I can --
Martin Fitzgerald: Actually, that's not true. I didn't, but I'm going to and I'm going to go by myself.
Samantha Spade: Is something wrong?
Martin Fitzgerald: No, I just, I don't want to do this anymore.
Samantha Spade: What?
Martin Fitzgerald: I'm just tired of playing games and frankly I'm not interested in waiting around while you figure out your problems.
Samantha Spade: My problems? So ... what are you saying? We're done?
Martin Fitzgerald: Well, not just like that, but yeah. I am.
Samantha Spade: So it's still unsolved?
Martin Fitzgerald: I guess some cases aren't meant to be.
Samantha Spade: You wanted me to fight harder didn't you?
Martin Fitzgerald: It shouldn't have to be a fight.
Initially slated to air on 28 April 2005, this episode was pre-empted for the president's speech about oil, and aired on a special night and time on Wednesday, 4 May 2005.
Jack Malone: All that's missing is the banjo music.
This is a reference to the 1972 film Deliverance which was famous for including "dueling banjos" as its soundtrack.