The Chechen is a Russian crime lord and drug dealer who appears as a supporting antagonist in the film The Dark Knight.
He was portrayed by Ritchie Coster, who also played Dietrich Banning in The Tuxedo and Mark Bruner in the Law & Order episode "Bodies".
The Chechen was the leader of the Russia-based mafia and is a close associate of Sal Maroni.
He was a known buyer of Scarecrow's fear toxin (although he later tried to sell it back after learning what it really was) and was willing to work with the Joker in order to bring down Batman and Harvey Dent.
He later succeeds in locating the location of the Mob's money with help from the Joker and Lau, but Joker sets the money on fire instead and takes control of Chechen's outfit.
The Joker then says that he was going to order his men to chop him up and feed him to his dogs (which are black Rottweilers), as they drag him away to his aforementioned fate. The Joker would later use the Chechen's dogs to attack Batman during the final battle.
The Joker: Tell your men they work for me now. This is my city. The Chechen: They won't work for a freak. The Joker: Freak (mocking accent)?? Why don't we cut you up into little pieces and feed you to your pooches? And then we'll see just how loyal a hungry dog really is!
~ The Chechen criticizing the Joker for taking the control of the gang before being taken by the thugs to be eaten by dogs.