Background: Dr. William Roll is a famous parapsychologist that has worked on hundreds of cases about paranormal experiences, including ghosts, psychic phenomenon, and more. Case Files: * The Queen Mary * Tina Resch * Tatum House * Wyrick House * Jeanine Price * Three Partners Ranch * Dannion Brinkley Notes: Dr. William Roll has appeared in several Unsolved Mysteries segments, and was featured in episodes including October 26, 1988 episode, May 19, 1993 episode, October 21, 1994 episode, February 3, 1995 episode, and April 19, 1996 episode. Links: None