William G. Roll (July 3, 1926 – January 9, 2012) was a noted psychologist and parapsychologist on the faculty of the Psychology Department of the University of West Georgia in Carrollton, Georgia, in the United States. He held various positions there, including Professor of Psychology and Psychical Research, assistant professor, and instructor. Sometimes credited as William Roll, or informally, Bill Roll, he was a parapsychologist since the 1950s and authored or coauthored many investigation research papers, articles, and four books: The Poltergeist (1972), Theory and Experiment in Psychical Research (1975), Psychic Connections (1995, with co-author Lois Duncan), and Unleashed: Of Poltergeists and Murder: The Curious Story of Tina Resch (2004, with co-author Valerie Storey). He is also notable for making several appearances in the television show Unsolved Mysteries, among them an episode discussing disturbances on the RMS Queen Mary.

READ HIS OBITUARY FROM THE PARAPSYCHOLOGICAL ASSOCIATION