Charmed

Meet Joy
Broker, also known as Charmer on the on the police report. Sidekick to both the Joker and Harley Quinn, she's been on the wrong side of law since she was nine. Because of her gymnast background and amazing stealth skillls, she's become the Joker's 3rd in command.

Since she had been introduced by the crazy couple, any hero whose fought with the Joker is trying to learn anything and everything about her. She's called Charmer for a reason. Joy can use her superpowers of persuasion and hypnotism to wiggle her way out of any situation.

When the Dynamic Duo and Young Justice take interest, who knows what will result?