Alexander Sukhoi 50 years old is Artyom's adoptive father and mentor,as well as a high-ranking official at the Commonwealth Exhibition of Economic Achievements.Artyom is still a baby,his mother gives him to Sukhoi,while a horde of rats attacks their home station.Despite this,he wanted to be a good father to Artyom, who he believed should have a future that he never had.At the end of the novel,Sukhoi was responsible for the survivors at VDNKh.