Beverly "Bev" Marsh is a fictional character created by Stephen King and one of the main characters of his 1986 horror novel It. The character is seen as a member of "The Losers Club" and a romantic interest of fellow members Bill Denbrough and Ben Hanscom. She is portrayed in the 1990 TV mini-series adaptation by Emily Perkins as the young version and Annette O'Toole as an adult. In the film adaptions of 2017 and the 2019 sequel, Sophia Lillis and Jessica Chastain portray Beverly Marsh as the younger and adult version, respectively.