Margot Robbie as Harley Quinn

Harley Quinn, real name Harleen Quinzel, is a former psychoanalyst who turned psycho after she fell in love with one of her patients, the Joker. Despite her antics, she’s both unpredictable and uncontrollable, making her perhaps the scariest in the Squad.

This is the debut film for the character, and Ayer created an all-new look for Harley after combing through her various costumes and versions in comics and animated series.

Margot Robbie looks set to become a household name after her role in The Wolf of Wall Street. She also starred in The Legend of Tarzan, released earlier this year.