Dinah "Laurel" Lance/Black Canary
Laurel Lance was Oliver's girlfriend before his shipwreck. She is also part of a group called CNRI that helps needy people.
Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.
You know what Oliver? You're wrong that island did change you. At least now you're honest.Laurel