HBO and Sky’s legal drama “War” has cast additional leads for its second season. Marisa Tomei, Kelly Macdonald and David Harewood are set to star as the series moves into a new case, following the show’s original run. The first season stars Dominic West and Sienna Miller as a high-net-worth divorcing couple, with its release planned for later this year. Reports also note that production activity for season two begins ahead of season one’s debut. Deadline adds that series creator George Kay received an initial two-season order, and that Richard Schiff is also expected to return for the second installment. Across the outlets, the common thread is the expansion of the ensemble for season two with Tomei, Macdonald and Harewood taking prominent roles alongside Schiff, as the program continues across HBO and Sky. The second season’s focus is described in connection with a new legal matter, though detailed plot specifics for that case are not provided in the materials reviewed.