Description:Grant Gustin exploded onto the scene last November as Sebastian, the at-first-nefarious then sorta lovable but still kinda douchey Warbler on Glee. Since then he's not only amassed a loyal fan following, but a major TV movie role! RELATED - Grant Gustin: "Sebastian is More Than A Douchebag!" For his next project, Lifetime tapped the rising star for A Mother's Nightmare, which revolves around Chris Stewart (Gustin), a 16-year-old who falls into a depression after his girlfriend dumps him and his (2:46)