Dmitri Aleksandrovich Bilenkin (Russian: Биле́нкин, Дми́трий Алекса́ндрович); September 21, 1933 – July 28, 1987, was a Soviet science fiction author.
In 1959 Bilénkin became a science fiction writer, worked on Komsomolskaya Pravda's editorial staff and later at Vokrug sveta (English: Around the World) magazine.
Together they wrote a cycle of detective stories "Five presidents" and a novel Blue Man, closely connected with its heroes.
Polynov travels throughout the Earth and the Solar System, unraveling the secrets of nature and the universe, fighting the enemies of humankind.
Polynov is an intellectual, scientist and psychologist; his behavior is guided by the discoveries and achievements of psychology and not by supernatural abilities and technical features of the future.