Harlequin
Comic book character
The Harlequin is the name of four clown-themed DC Comics characters.
The original Harlequin was a foe of the Golden Age Green Lantern and later became his wife. The second Harlequin originally debuted as the Joker's Daughter and was a member of... Wikipedia
Created by: (Mayne); Robert Kanigher; Irwin Hasen; (Cooper); Roy Thomas; (Unknown); Ron Marz; Jim Balent