Casper the Friendly Ghost was a comic book published by Harvey Comics, based on the Famous Paramount cartoon character of the same name. The series quickly became the most popular comic published by Harvey, which led the company's acquisition of the character rights from Paramount in 1957. The first volume ran from 1958 to 1989. When Harvey Comics went out of business, it contained 260 issues.
The comics takes place in the Harvey Comics Universe where all the characters co-exist, so appearances of some characters such as Wendy the Good Little Witch, Nightmare the Ghost Horse and Spooky the Tuff Little Ghost are very common. Other characters like Richie Rich and Hot Stuff the Little Devil make occasional appearances.