Holiday

Gilda Dent, occasionally referred to as Grace, is a fictional character who has appeared in Batman comic books since Detective Comics #66. Associated with her fiancé Harvey Dent, who becomes the criminal mastermind Two-Face, she has since been a recurring character throughout various Batman stories involving him. Her largest role is in the Jeph Loeb and Tim Sale collaboration Batman: The Long Halloween, where she became the criminal known as Holiday, a serial killer who killed members of Gotham City's crime families in correlation with holidays in the yearly calendar.