which American composer did Anthony Ramos originated the role of Justin Laboy in his short musical "21 Chump Street"
Anthony Ramos (actor):  Prior to that, he originated the role of Justin Laboy in Lin-Manuel Miranda's short musical "21 Chump Street". Lin-Manuel Miranda: Lin-Manuel Miranda ( ; born January 16, 1980) is an American composer, lyricist, playwright, and actor best known for creating and starring in the Broadway musicals "Hamilton" and "In the Heights".
Lin-Manuel Miranda