Maddie Fenton is the wife of Jack and the mother of Jazz and Danny. She is a scientist, one of the co-owners of Fenton Works, and a ghost hunter just like her husband, though she is better at ghost hunting and more intelligent than him. Unlike Jack who merely wants to rip them apart, Maddie believes in a more scientific approach, preferring to examine them. Despite her obsession with ghosts, Madie absolutely loves her family and will do anything to defend them.