Seymour ReitSeymour Reit.

Seymour Victory Reit (11 November 1918 to 21 November 2001) was an American author of over 80 children's books as well as several works for adults. Reit claimed to be the creator of the character Casper the Friendly Ghost, and several co-workers supported his claim, though cartoonist Joe Oriolo, who drew the first Casper book, claimed that he created Casper and Reit wrote the book under his direction. Reit started his career working for Fleischer Studios as an animator; he also worked for Jerry Iger and Will Eisner as a cartoonist, for Laffboy as editor in 1965, and for Mad Magazine and several other publications as a humorist.