What is the name of the actress known for her role as Grace on "How to Rock" and the movie Before I Fall?
Before I Fall (film):  The film stars Zoey Deutch, Halston Sage, Logan Miller, Kian Lawley, Jennifer Beals, Diego Boneta and Elena Kampouris. Halston Sage: Halston Jean Schrage (born May 10, 1993), better known by her stage name Halston Sage, is an American actress. Halston Sage:  She is known for her roles as Grace on the Nickelodeon television series "How to Rock", Amber on the NBC television series "Crisis", and Lacey in the film "Paper Towns".
i don't know