Nicole Walker is a fictional character on the NBC soap opera Days of Our Lives, a long-running series about working-class life in the fictional town of Salem. She was introduced in 1998 by head writer Sally Sussman Morina, and executive producer Ken Corday. Actress Arianne Zucker has portrayed the character since her introduction to the series in 1998. In 2006, Zucker left the soap in pursuit of other acting possibilities. She returned to the role in 2008. In 2016, Zucker also appeared as Helena Tasso, a deceased woman who bears a resemblance to Nicole, in flashbacks. In March 2017, Zucker announced she would once again leave the role. She made her final appearance in the role on October 20, 2017. Following her departure, media outlets began to report that Zucker was to reprise the role for a short-term visit in December 2017 after being spotted on-set; Zucker explained her visit, stating that her daughter was included in the annual telling of the Christmas Story at the University Hospital. In June 2018, it was announced that Zucker would reprise the role of Nicole later the same year. She appeared for a few weeks in October 2018. Zucker later returned in April 2019, but as Kristen DiMera, who was posing as Nicole. Zucker then returned to the role of Nicole in September 2019.