Robert Downey Sr. passed at age 85. Father to Robert Downey Jr., this Hollywood figure played an important role in the underground film movement of the 60s & 70s. Downey Sr. died on Tuesday night in his sleep at his NY City home. In an Instagram tribute on Wednesday, Downey Jr. captioned his post “RIP Bob D. Sr. 1936-2021…Last night, dad passed peacefully in his sleep after years of enduring the ravages of Parkinson’s. He was a true maverick filmmaker, and remained remarkably optimistic throughout.”