- Sebastian Sanger: [to Rachel, his sister] You know, Mom and Dad were delicious, but I think I still have a little bit of room for you.
- [Tries to grab her]
- Sebastian Sanger: My whole life. My whole life, all I ever wanted was love and acceptance, and all I got in return was cruelty and pain. It took me a long time to realize that cruelty and pain are the only true principles of existence. And you either suffer them, or you inflict them. It's time for other people to suffer. I'm done suffering.
- Sebastian Sanger: [His last words] No. No. This is my story. You don't get to be the fucking heroes!
- Gar Logan: Oh, Christmas morning people are all about the presents, right? The instant gratification. But Christmas Eve is all about the hope, the excitement, the anticipation, because all the good things are still in the future, yet to come.
- Bernard Fitzmartin: S.T.A.R. Labs has always been about the betterment of mankind. We debate our research and development and the possible consequences of our actions. Project Icarus is as close to the line as we've ever gone.
- Rachel Roth: Does anyone else hate where this is going?
- Sebastian Sanger: I'm gonna let you in on a little secret. When you murder someone and you drink their life's blood from their beating heart, you really get to know them