- Aaron Hotchner: Woah, that is definitely not Spider-Man.
- Jack Hotchner: He's not a real superhero...
- Aaron Hotchner: He's not? Okay, I give up, who are you supposed to be?
- Jack Hotchner: I'm you, Daddy.
- Dr. Spencer Reid: The cool thing about Halloween is that it's a uniquely American holiday. I mean, despite its obvious origins in the Celtic festival of Samhain and the Christian All Saints' Day, it really is a melting pot of various immigrants' traditions and beliefs. It became a little more commercialized in the 1950s with trick-or-treat, and today it rivals only Christmas in terms of popularity.
- Emily Prentiss: [Reid is rambling about Halloween] All I did was ask what he was doing this weekend.
- Dr. Spencer Reid: I'm toying with the notion of either going to the Edgar Allan Poe Shadow Puppet Theater or the reenactment of the 19th century Phantasmagoria.
- David Rossi: I don't wanna know.
- Dr. Spencer Reid: Oh, yeah, you do.
- Aaron Hotchner: [voiceover] Nicolo Machiavelli wrote, "If an injury has to be done to a man, it should be so severe that his vengeance need not be feared."
- Aaron Hotchner: [voiceover] Thomas Kemp wrote, "Love feels no burden, thinks nothing of its trouble, attempts what is above its strength, pleads no excuse for impossibility, for it thinks all things are lawful for itself, and all things are possible."
- Lt. Al Garner: Do you know how rare it is for an arsonist to be a burn victim?
- Dr. Spencer Reid: Less than 3.5%.
- Derek Morgan: This guy's not an arsonist. He's a serial killer who uses fire.
- Dr. Spencer Reid: Phantasmagorias are these amazing pre-cinema projected ghost shows invented in France, where the showman attempted to spook the audience using science magic. And it just so happens that I have an extra ticket.
- Penelope Garcia: Tempting.