Showtime is rounding out the cast for its prison escape drama from Ben Stiller. The show, which will be directed and executive produced by Stiller, will tell the real-life story of Richard Matt and David Sweat, two inmates who were discovered missing at the maximum security Clinton Correction Facility in New York after being aided in their escape by a female prison employee. Del Toro will play Matt, an artistic yet intimidating force within the prison who masterminds the escape, while Arquette will play Tilly Mitchell, a working-class married woman who supervises the prison tailor shop and becomes sexually involved with both convicts, inducing her to assist them with their escape.