HBO's "Task" has added five actors to its Season 2 ensemble, while also confirming one returning cast member from Season 1. As previously reported, Oscar winner Mahershala Ali is joining the acclaimed crime drama as Eddie Barnes, "a seasoned and well-respected DEA agent in Philadelphia whose team comes into conflict with Tom's unit." Also joining the cast are Tim Blake Nelson ("Watchmen") as Denny Coughlin, a career cop who plays by his own rules, and Kevin Dunn ("Veep") as Tom's boss, Vince Runyan. Additionally, Andrew Russel will reprise his Season 1 role as Tom's son, Ethan. Julianne Nicholson will also reprise her "Mare of Easttown" role as Lori Ross.