Bonnie Hunt has been cast in Ben Stiller’s upcoming Showtime limited series “Escape at Dannemora,” Variety has learned.

She joins previously announced cast members Benicio del Toro, Paul Dano, and Patricia Arquette. Stiller will executive produce and direct. The eight-hour limited series is based on the true story of a prison break in upstate New York in the summer of 2015 that spawned a massive manhunt for two convicted murderers, who were aided in their escape by a married female prison employee who was sleeping with both prisoners.

Hunt will play Catherine Leahy Scott, the New York State Inspector General who headed up the investigation into the escape of prison inmates Richard Matt and David Sweat from Clinton Correctional Facility in Dannemora, New York. Del Toro will play convicted murderer Richard Matt, an artistic yet intimidating force within the prison, who masterminds the escape. Arquette will play Tilly Mitchell, a working class, married...