Spanish actor Sergio Peris-Mencheta has been tapped for a lead role opposite Damson Idris and Billy Magnussen in FX's drama pilot Snowfall, about the beginnings of the crack cocaine epidemic in Los Angeles in the 80's. Co-written by John Singleton and Eric Amadio and directed by Singleton, Snowfall is set against the infancy of the epidemic and its ultimate radical impact on the culture as we know it. Peris-Mencheta, repped by APA and Vision Entertainment, will play…