Martha Plimpton and Mark Ruffalo in HBO's 'Task' Peter Kramer/HBO Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text HBO will lead off its fall slate with Task, a series starring Mark Ruffalo and Tom Pelphrey from Mare of Easttown creator Brad Ingelsby. Task is set to premiere Sept. 7 on HBO and HBO Max.