This episode marks the first appearance of Kristen Bell (Elle).
David Anders (Takezo Kensei) is now credited as a series regular.
This is the first episode in which Hayden Panettiere (Claire Bennet) does not appear.
In real life, Noah Gray-Cabey (Micah) is a skilled piano player. All of the scenes in this episode that feature Micah playing the piano were all performed by Noah Gray-Cabey, not a double.
Guest star Alan Blumenfeld
(Maury Parkman) and series star Greg Grunberg
(Matt Parkman) previously worked together on Felicity
, also as father and son.
DVD Commentary by Greg Grunberg and Greg Beeman.
Ratings: 10.80 million viewers
Caitlin: Peter, just because you don’t remember your past, it doesn’t mean you don’t have one.
Nathan: Let me come with you.
Matt: Fine. We can probably get there faster. You know, 'cause you can err...
Nathan: I'm not a cargo jet, Parkman!
Peter: You were right. Whatever I was, whoever I am, I have to face it. Nothing that I find in this box is going to change anything. Whatever my life was before, this is where I want to be now. With you. Okay?
Caitlin: Okay. Get on with it, then.
Maury Parkman: Still angry, huh, Matt? Feel better slapping the cuffs on your dad? Make you feel good?
Matt Parkman: Starting to, yeah.
Mohinder: Molly won’t last, not like this. They are the only people who can understand what’s happening to her.
Mr. Bennet: Don’t do this. The moment you trust them with what you care about most, they’ll have you. Don’t forget who’s side you’re on.
Mohinder: I’m on her side.
Micah: Monica, do you remember last night when I said I was able to rig the pay-per-view on the TV?
Micah: Well, I lied.
Monica: How did? How did you --
Micah: I think it runs in the family. I mean, maybe not exactly like me, but my dad could walk through walls.
Micah: Yeah, and my mom. Don't even get me started on my mom.
Elle: You know, I’ve never been in an Irish pub before. Do you have haggis?
Ricky: That’s Scotland, love. We have stew. And muscles. And stew.
Mohinder: Niki, you’re a prisoner!
Niki: No, I’m not! I came here on my own. I gave up my son to be here. I’m sick. I didn’t think anyone could understand my problems. What I’ve done, what I’m capable of. These are the only people who can help me.
Elle: All right, I killed him, okay? What is the big deal?
Mohinder: (voiceover) When confronted by our worst nightmares, the choices are few; fight or flight. We hope to find the strength to stand against our fears but sometimes, despite ourselves, we run. What if the nightmare gives chase? Where can we hide then?