Dimitri Rascalov

Dimitri Rascalov is the main antagonist of video game, Grand Theft Auto IV.

Information
Dimitri first met Niko Bellic and his cousin, Roman, when they're kidnapped for killing Mikhail Faustin's employee, Vlad Glebov. He is shown to be working with Mikhail himself. Since then, Niko would be doing favors for them.

Later on, Dimitri meets Niko secretly in a carnival and orders him to kill his own boss so that Kenny Petrovic can spare both of them. While doing so, Mikhail tries to warn Niko about Dimitri's backstabbing behavior, but fails. It is proven true when he finally betrays him and is shown working for his old enemy, Ray Bulgarin.

After Niko escapes the ambush at a warehouse, Dimitri would try to turn his life a living hell by burning down Roman's apartment and taxi depot, and kidnapping Roman in order to get Niko killed.

Near the end, Dimitri is allied with Jimmy Pegorino, and asks Niko if he could join the in the deal of getting heroin. Either way, he dies.