Laura Hellinger is a prosecutor in the Cook County State's Attorney Office. She was hired by Peter Florrick after Alicia Florrick recommended her for the position. She previously served as a military lawyer at the rank of captain in the US Army's Judge Advocate General Corps.
Laura Hellinger was a client of Alicia Florrick and Lockhart/Gardner when she accused a civilian contractor in Afghanistan of attempted rape. After losing the case, she left the military to become a lawyer. Laura and Alicia often face off in court, although are shown to be friends.
Laura Hellinger briefly dated Will Gardner, but she broke off the relationship when she realized that he still has feelings for Alicia.