Oleg Ladyzhensky

Oleg Ladyzhensky is a Ukrainian science fiction writer and director. Since 1991, works created in collaboration with Dmytro Hromov have been published under the collective pseudonym Henry Lion Oldi. The pseudonym is formed from the first letters of the authors' first names and surnames. Their collaboration began in 1990 and continues to this day. Their first joint work was the story "Happiness in Written Form."