Sergei Valishnikov (portrayed by Thayr Harris) is a minor character from Deadpool 2. He was the head of a drug trafficking ring based in New York City who was targeted by Deadpool for assassination.
At the end of his "mercenary world tour", Deadpool returned home to New York to kill Valishnikov before settling down with his girlfriend Vanessa. The regenerating degenerate attacked Valishnikov's drug plant, killing all of the goons that got in his way. Valishnikov managed to lock himself in a panic room before Deadpool could reach him. The mercenary decided to leave Valishnikov for a while, knowing he would eventually resurface later. Seeking revenge, Valishnikov rounded up what few henchmen he had left and decided to follow Deadpool home.
Death[]
Valishnikov and his four remaining goons invaded Vanessa's apartment, but Deadpool made short work of the thugs. Valishnikov himself fired off a single bullet which missed Deadpool but struck Vanessa, killing her. Valishnikov then made a run for it, but Deadpool quickly caught up with him and attacked him in the street, knocking him down and beating him. Deadpool then picked Valishnikov up off the ground, holding him while standing in the middle of the road. A truck came speeding toward the pair and slammed right into them. Deadpool's healing ability would allow him to survive the collision, but Valishnikov was killed immediately.