Who is this man? The protagonist in "All is Lost" is also its sole character — an older (but astoundingly fit) stranded sailor portrayed by 77-year-old Robert Redford. He's unnamed, and does not speak except for right at the beginning of the film when he's reciting a letter to persons unknown. The letter is couched as an apology, but for what sin we do not know. "I will miss you," he says by way of farewell. He wears a wedding ring on his left hand, but there's no telling to whom he's directing this missive.