Nikolai was portrayed by Oleg Taktarov in the movie Predators.
Nikolai was a soldier in the Russian special forces who was fighting in Chechnya. While being there he was kidnapped by the Predators and taken to another planet for hunting purposes.
After he found out about this, Nikolai, together with the others who also were dropped on the planet at the same time, attempted to find a way to escape from the foreign planet and return to Earth. He protected Edwin because he saved him from being poisoned by a plant.
He later blew himself up there and took a Predator with him.