Friday’s sequel to “The Accountant” reunites Ben Affleck, 52, with Jon Berthnal, 48, and Cynthia Addai-Robinson, 40, from the 2016 original. This time, Affleck’s autistic mathematical savant Christian Wolff must partner with his long estranged, hired assassin brother Brax (Bernthal) and U.S. Treasury Deputy Director Marybeth Medina (Addai-Robinson) to expose and survive a deadly conspiracy