The Ghost Whisperer
Jennifer Love Hewitt, the main character in the series, publically announced in 2007 that the set of The Ghost Whisperer was haunted. She even had proof. While filming a scene, the crew noticed some type movement behind Hewitt. Feeling curious, they replayed the footage to see what looked like a ghost turning its back on Jennifer.
Along with this footage, crew members have confessed to feeling tugs on their clothes. Lights would explode or move on their own and some things completely disappeared. Unfortunately for the show, these accusations have kept plenty of actors and actresses from agreeing to play a guest role for the show.