Jami O'Brien is an American motion picture writer and producer. She is an Co-Producer, Executive Story Editor, and writer for Hell on Wheels. She joined the crew as an Executive Story Editor for the first season in 2011. She wrote the fourth episode "Jamais Je Ne T'oublierai". She was promoted to Co-Producer for the second season in 2012. She has also worked on the series Big Love, The Deep End, Close to Home, and Lie To Me.