Eduard Nikolayevich Uspensky (Russian: Эдуард Николаевич Успенский, Эдуард Успенский) is a Soviet and Russian writer and author of several children's books. Among his most beloved characters are a serious but adventurous boy known, for his serious disposition, by the sardonic nickname of Uncle Fyodor (Дядя Фёдор), from Uncle Fyodor, His Dog and His Cat; and the anthropomorphic duo of Crocodile Gena (Крокодил Гена) and Cheburashka (Чебурашка), featured in a children's novel by Uspensky about the adventures of the two animal friends.