The Grinch Creator is Dr. Seuss, a renowned American children's author and illustrator. He is best known for his books such as The Cat in the Hat, Green Eggs and Ham, and How the Grinch Stole Christmas. He wrote over 60 books and his works have been translated into more than 20 languages. His imaginative stories, characters, and rhymes have inspired generations of readers and continue to be popular today.