Holly Quinn is the daughter of The Joker and Harley Quinn.
Holly lives with her parents in a house that looks like a fun house. She has 11 sisters, Hailey, Harper, Spade, Clover, Jessica, Jane, Jennette, Hannah, Jessy and Jasmin,Scarlet and 1 brother, Hershall. She also has a foster sister named Elise.
Just like her sisters, Holly mostly hangs out with the Gotham Group. Her best friends are Maci Freeze, Mertensia Bella Isley, and Charlotte Dent.
Holly has a rivalry with Damien Wayne, not only because of their fathers' rivalry, but because Damien refused Hailey's love.
- Holly is voiced by Kath Soucie.
- Her full name is Holly Henrietta Quinzel.