Hollywood actor Mark Ruffalo has opened up on filming the first season of his recently released streaming series ‘Task’. The actor spoke about his preparation for his part in the series. The actor, 57, recently graced the premiere of the new HBO original series, in which he stars as FBI agent Tom Brandis, reports ‘People’ magazine.

While preparing for the role, Ruffalo consulted with real-life retired FBI special agent Scott Duffey, who he says taught him a meaningful lesson about people who work in the field. “I learned that the best FBI agents have a lot of empathy”, he shared. As per ‘People’, last month, he shared that when he wasn’t with Duffey, he spent most of his time going around Philadelphia, where the show was filmed, eating the city’s famous dish.