Harley is usually a villain in the DC universe, which could be tricky when she's suddenly the heroine of her own show. But the producers say that Harley is operating by her own moral compass so they aren't worried that the audience will start rooting against her.
"The nice thing is that most of the time she's going up against other villains that are worse than her, so I think we can root for her in that way," said Halpern. "She is a killer, but generally we've built in that those dying at her hands deserve it, clearly."
He added, "She has her own moral compass that's just way more skewed than what most of us would think was correct. But we did try to make sure — what is Harley's moral compass? Would this violate it? Would it not? Those were always questions we were asking in the writers' room."
