It is revealed that Doakes' aliases are: Freddie Caldwell, Joby Harris, James Duke, and William Glass.
The slides Lundy shows has the names of Dexter's victims: Luke Wellens, Buck Forester, A. Jorgen, Kevin Mott, Jerry V., Sean Dibberman, Herbert W., Jacob Wilson, George Hoss, Olman Estavez, Alan Matherson, and Thomas Hillstat.
Dexter: (voiceover) Taking a life is one thing, but the care and feeding of it is another. I can't keep my problem locked away in a cabin forever. Harry always said there were plenty of people who deserved to die, but no matter how hard I close my eyes and wish, Doakes isn't one of them. Harry, he never prepared me for this one, what do I do? What would you do?
Dexter: I should warn you Sergeant, you can't play on my feelings. I don't have any.
Doakes: Oh really? Who's lying now?
Dexter: Why couldn't just leave me to do my work in peace? Why'd you have to go and ruin everything?
Doakes: You're a killer. I catch killers.
Dexter: So do I. I caught you.
Doakes: I'm not a killer.
Dexter: You are. That's why you've always known what I am. That's why you have more "officer-related" shootings than anybody else. Only I don't fuck with you when you shoot somebody, why couldn't you pay me the same professional courtesy?
Doakes: There's nothing professional about what you do. I kill when I have to, on the job.
Dexter: So, it's okay to take a life as long as you get a paycheck for it?
Angel: Help me out here. What does a seven year old girl like?
Dexter: Astor likes CNN.
Dexter: I've got news for you, Sergeant. My code requires a higher standard of proof than your city's laws. At zero cost to the taxpayer, you ask me, I'm a bargain.
Lundy: I thought that the novelty of my AARP discount would wear off and you'd get tired of me.
Deb: Oh my God. That's the sweetest thing you've ever said.
Dexter: Deb, Doakes is a lot of things, but he's not an idiot. He won't come out of the shadows because of a grudge.
Deb: Right. Because serial killers are so practical.
Dexter: Actually they are.
Doakes: Now I think you got a conscience.
Dexter: Of course I have a conscience. I left you a place to shit, didn't I?