Casper the Friendly Ghost is a fictional character who serves as the protagonist of the Famous Studios theatrical animated cartoon series of the same name. He is a translucent ghost who is pleasant and personable but often criticized by his three wicked uncles, the Ghostly Trio. The character debuted his theatrical film in a live-action adaptation of the series by Universal Pictures: Casper (1995), where he became the first computer-generated character to star in a movie.

Source: Wikipedia