Mary Ann Petterson is portrayed by June Squibb; she is Melinda's grandmother and, like her, bears the gift of the ability to speak to the dead. Mary Ann supported the idea of Melinda learning more about her gift, but her daughter Beth refused to allow her daughter to do so, leading to a fall out between Mary Ann and Beth.
Character Overview
Early Life
Season One
Season Two
Season Three
Appearances
Beth makes a total of 7 appearances throughout the first three seasons.
- Season One (2005-2006): "Pilot", "Ghost, Interrupted", "Melinda's First Ghost", "The Vanishing"
- Season Two (2006-2007): "The Gathering"
- Season Three (2007-2008): "All Ghosts Lead to Grandview"