Billy Costigan: There was a cop leaving when I came in. Madolyn: How did you know he was a cop? Billy Costigan: Know, bad haircut, no dress sense, and, you know, a slight air of scumbag entitlement.
Billy Costigan: [to Madolyn] There is no one more full of shit than a cop except for a cop on TV.
Ellerby: How is your wedding coming along? Colin Sullivan: Great, great; she's a doctor. Ellerby: That's outstanding. Colin Sullivan: Yeah. Ellerby: Marriage is an important part of getting ahead: lets people know you're not a homo; married guy seems...
Frank Costello: You do well in school? Young Colin: Yeah Frank Costello: Good. So did I. They call that a paradox.
Billy Costigan: Frank, how many of these guys have been with you long enough to be disgruntled, huh? Think about it. You don't pay much, you know. It's almost a fuckin' feudal enterprise. The question is, and this is the only question, who thinks tha...
Colin Sullivan: I can't wait to see you explain this one to a fucking Suffolk County jury you fucking cocksucker. This is gonna be fucking fun!
[detailing the undercover operation to nail Costello] Ellerby: Our target: microprocessors. Yes, those. I don't know what they are, you don't know what they are, who gives a fuck?
Ellerby: This unit is new, and you are the newest members of it. You have been selected from the basis of intelligence and aptitude. This is an elite unit. Our job is to smash, or marginally disrupt, organized crime in the city by enhanced cooperatio...
Billy Costigan: Listen, listen. I got like, like thirty thousand bucks, right? Insurance money. You know, after my mother passed and everything? Cousin Sean: Yeah, yeah. Billy Costigan: In your line of work, if I gave you like what, ten thousand, wha...
Frank Costello: I'm going to have my associate search you. Billy Costigan: No, no one's fucking searching me. Searching me for what? Frank Costello: Contra-fucking-band. Take your shoes off. [French slams Costigan into a chair] Mr. French: Shoes. Fra...
Colin Sullivan: I can get the rat. You just gotta let me do it my way, Frank. Frank Costello: Okay. [hands Sullivan "Citizens Trust" envelope] Frank Costello: But Colin - I hope I don't have to remind you that if you don't find that cheese-eating rat...
[Colin confronts Billy on the rooftop] Billy Costigan: FREEZE! [points gun at Colin] Colin Sullivan: Hey! Hey! Hey! Billy Costigan: Put your fucking hands up! Colin Sullivan: Put the fucking gun down! Put the gun... put the gun down, alright? I came ...
Billy Costigan: [referring to Costello] Do you want him to chop me up and feed me to the poor, huh, is that what you want?
Frank Costello: You get your period yet, Carmen?
Colin Sullivan: Hey, now why do you work for the state? Madolyn: Why not? You do. Colin Sullivan: No, what you do, the degrees and everything you got, you're hot shit. So why do you make as much as a guidance counselor? Madolyn: Because... I believe ...
Frank Costello: Now whenever you make a call ask for Mikey, MIKEY!... huh... you ask for a Mikey 'cause there is no Mikey.
Frank Costello: What the fuck is it with and your phone? Uh? Colin Sullivan: You know.
Dignam: I can't wait to wipe that fucking smirk right off of your face. Frank Costello: Wouldn't you rather wipe my ass for me?