Mahershala Ali has joined the cast of 'Task' season 2 at HBO, where he will appear alongside Mark Ruffalo. The season is also expected to feature a crossover with another HBO series, with Julianne Nicholson's character from 'Mare Of Easttown' set to appear. The cast for season 2 is expanding, with other additions including Edgar Ramirez, Harry Melling, and Aminah Nieves.