Patricia M. Cast is an American actress. She is best known for her portrayal of Nina Webster on the CBS soap opera The Young and the Restless.

Nina Webster is a fictional character from The Young and the Restless, an American soap opera on the CBS network, portrayed by Tricia Cast. She was introduced during the episode airing on June 26, 1986, as a pregnant teenager whom Christine Blair befriends. Cast remained a regular cast member for fifteen years before asking for a contract release and departing onscreen in February 2001. In 2008, the actress returned for several guest spots, and the following year, she returned for a bigger storyline, and has continued to make occasional appearances until 2014. Cast later returned in 2020 to present.