Seymour Victory Reit (11 November 1918 – 21 November 2001) was the author of over 80 children's books as well as several works for adults. Reit was the creator, with cartoonist Joe Oriolo, of the character Casper the Friendly Ghost. Reit started his career working for Fleischer Studios as an animator; he also worked for Jerry Iger and Will Eisner as a cartoonist, and for Mad Magazine and several other publications as a humorist.