Margot Robbie credited as playing...
Harley Quinn
- Harley Quinn: We all know the saying, "Behind every successful man, there's a badass broad." Well, that was me.
- Harley Quinn: Oh hey, you're that singer no one listens to.
- Dinah Lance: Oh hey, you're the asshole no one likes.
- Harley Quinn: Do you know what a harlequin is? A harlequin's role is to serve. It's nothing without a master. No one gives two shits who we are, beyond that.
- Harley Quinn: Here's the thing, Romy baby: your protection is based on the fact that people are scared of you. Just like they're scared of Mr. J. But I'm the one they should be scared of! Not you, not Mr.J! Because I'm Harley Fucking Quinn!
- [last lines]
- Harley Quinn: [at end of closing credits] Are you dummies still sitting there? Fine! Since you stuck it out this long, I'll tell you a super-duper secret secret, which you can't tell anyone! Okay. Did you know that Batman f...
- Harley Quinn: [while arming themselves against Roman's army] Isn't this fun? It's just like a sleepover. We should order pizza, make Cosmos...!
- Dinah Lance: Harley, focus!
- Harley Quinn: There are two ways that diamond's coming out of you.
- [holds up a bottle of LaxPlus]
- Harley Quinn: This way.
- [grabs a sharp knife]
- Harley Quinn: Or this way.
- [Cassandra quickly chooses the bottle of LaxPlus]
- Harley Quinn: That's what I thought. Also, I'm out of groceries.
- Harley Quinn: If you want boys to respect you, show them you're serious. Shoot something, blow it up!
- Cassandra Cain: [from trailer] Oh shit, is that a hyena in the bathtub?
- Harley Quinn: I named him Bruce after that hunky Wayne guy.
- Harley Quinn: [Sionis is outside the Booby Trap hideout] He's after all of us.
- [indicating Cassandra]
- Harley Quinn: The kid just robbed him.
- [to Dinah]
- Harley Quinn: You betrayed him.
- [to Huntress]
- Harley Quinn: You killed his BFF.
- [to Montoya]
- Harley Quinn: And you're dumb enough to be building a case against him. So, unless we all want to die very unpleasant deaths, and let Roman go finger-fishing through the kid's intestinal tract, we're going to have to work together.
- Harley Quinn: [handing out lime margaritas, to Cassandra] You drink, right, kid?
- Cassandra Cain: Sure.
- Renee Montoya: [plucks it away] I don't think so.