Twin sisters Delia and Deidre Dennis were the granddaughters of Harley Quinn, who joined the Jokerz under the joint alias "Dee Dee" and later followed in their grandmother's footsteps as "hench-wenches" of the original Joker. Many fans speculate that they may, in fact, be the granddaughters of the Joker as well. Their mother is Harley's daughter Lucy and they have an unknown father.