The star of dozens of animated shorts and specials, hundreds of comics, and one big-screen feature (which spawned a couple of straight-to-video follow-ups), Casper the Friendly Ghost has enjoyed a great deal of spooky success since he debuted in 1945. An affable spirit, the seemingly pre-adolescent blob of ectoplasm only wants to make friends. Unfortunately, people are consistently wary of his ethereal qualities. In the earliest shorts, he preferred to hang out by himself near a tombstone.

Does the tombstone belong to him? By virtue of being a ghost, doesn’t that mean Casper was once a real, live boy who suffered a tragic fate at a young age?

The Ghost With No Name

When Casper was created back in 1940 by Seymour Reit and Joe Oriolo, the question apparently didn’t come up. Reit and Oriolo planned to have Casper—who did not yet have a name—be the star of an illustrated children’s book, with Reit writing and Oriolo illustrating it. They never got the chance. The two, who worked at Fleischer Studios on animated shorts, were both drafted to serve in World War II. When they returned, Fleischer Studios had been purchased by Paramount, renamed Famous Studios, and wanted complete control over the intellectual property of work created by employees. The two sold Casper and other characters for a total of $200 to Paramount.

When Casper made his animated debut in the 1945 Famous Studios short “The Friendly Ghost,” he finally got a name, but no mention was made of his origins. The short references his “brothers and sisters” who enjoy scaring people but offers no other details of his private life.

A second short, 1948’s “There’s Good Boos To-Night,” shows Casper leaning on a tombstone while reading a book, with a “Love Thy Neighbor” sign hanging nearby. The ghosts in the cemetery are referred to as his “neighbors” and appear to rise from their respective resting places when it’s time to go haunting. This would imply Casper is relaxing at his own gravesite, though his name doesn’t appear on the tombstone. If so, it would support the idea he once occupied the land of the living.

As Casper moved into another medium, however, a case began to be made for his existence as something other than human. In 1949, St. John Publishing produced five Casper comics. In 1952, Harvey Comics took over the license. In an effort to expand Casper’s world, Harvey gave him a ghost family, including a mom and three uncles. None of them were named until 1955, when the uncles were dubbed Fatso, Fusso, and Lazo. What wasn’t clear, however, was whether Casper’s relatives were all deceased as well or whether the Casper mythology implies ghosts are simply "born" ghosts.

The Pneumonia Theory

When the Casper feature film starring Christina Ricci was released in 1995, producers apparently thought moviegoers would be confused by a lack of explanation, and so the Casper of that film was portrayed as a boy named Casper McFadden. He was said to have died of pneumonia at the age of 12 after staying out in cold weather for too long playing with a sled he had just received as a gift.

There is one alternative, and slightly darker, theory that was purportedly first floated by The Simpsons. In the 1991 episode “Three Men and a Comic Book,” Bart and Lisa speculate that Casper is the ghost of Richie Rich, another Harvey Comics icon. (The two bear a resemblance.) Lisa believes that his realization of “how hollow the pursuit of money really is” caused Richie to take his own life. Other observers have speculated that perhaps Richie’s parents killed their son for the insurance money.

This is, of course, virtually impossible, as Richie Rich wasn’t created until 1953, 13 years after Reit and Oriolo conceived of Casper.

So what is Casper—former boy or forever ghost? Given his comfort hanging around a tombstone and his pleasant nature preventing him from besmirching the grave of another, it seems likely he was once human. To date, only the 1995 feature has attempted to detail what led him to the afterlife. Considering Casper's appeal as a children's property, that's probably for the best.