Was Loretta Swit an extra in MUNSTER GO HOME playing a corpse in the "haunted house" segment? This photo sure looks a lot like her. This was years before any tv or movie credits but she was 29 at the time and likely trying to get into film and starting as an extra is not uncommon: http://www.sitcomsonline.com/boards/showthread.php?t=352607
Loretta Swit as the Corpse in the segment trying to scare The Munsters?