According to the film, Casper was a twelve-year-old boy living in Whipstaff Manor with his inventor father J.T. McFadden until he died from pneumonia after playing out in the cold until it was past nightfall.

How did Casper's mom die?

As it turns out, TV Over Mind notes that Casper's mom died during childbirth, leaving her husband to care for Casper alone. Later on, fans see Casper helping Kat go through the attic for something to wear to her Halloween party, and she begins trying on his mother's clothes.

What year did Casper die?

History. Not much is known about how Casper came to be a ghost, or how he did end up with the Ghostly Trio. According to the 1995 feature film Casper, he died when contracted pneumonia from playing out in the cold for too long, but so far, that's the only version there is.