Hit-Girl (real name Mindy McCready) is a fictional character appearing in the Kick-Ass series, published by Marvel Comics under the company’s imprint Icon Comics. The character was created by artist John Romita, Jr. and writer Mark Millar. She is a young but effective vigilante, trained by her father Damon McCready (a.k.a. Big Daddy) from an early age to be a costumed superhero and assassin. In Kick-Ass, she is introduced as a supporting character. She featured in her own self-titled comic book series, Hit-Girl, which was first published on 27 June 2012.
She is portrayed by Chloë Grace Moretz in the feature film adaptations Kick-Ass and Kick Ass 2. In the summer of 2008, Chloë Grace Moretz saw posters of Angelina Jolie in the film Wanted, in Los Angeles, prompting her to ask for a role that she described as “an Angelina Jolie-type character” and “like an action hero, woman empowerment, awesome, take-charge leading role.” One month later, she was offered the role of Mindy McCready / Hit-Girl. Source: Wikipedia.