Sergej Onopko was born and raised in Ukraine, in former Soviet Union. He attended an art school in his native city of Kharkiv, in which he practiced latin dance, painting and performance art & competed in latin & standard dance nationally for 5 years. He took part in several international film productions, since 2012 where he had his very first appearance in the action film "A Good Day to Die Hard" ever since he has appeared in more than 35 TV films, Short Films, TV series and feature films.