The Bulgarian

The Bulgarian is the main antagonist of the 2018 comedy, Game Night. He is a mysterious and international criminal, who seeks a list of people in Witness Protection.

He is played by Michael C. Hall, who played Dexter Morgan and Toffee.

Biography
Max and Annie Davis is a regular, yet competitive couple, who enjoy games more then ever. When Max's more successful brother, Brooks invites them and a few friends to a mystery role-playing game, he is really kidnapped by two thugs, yet everyone thinks it's still a game. After locating Brooks, everyone realizes the game is real and all of them are in grave danger.

After recuperating at the Davis' House, Brooks comes clean and reveals he makes his fortune selling items on the Black Market. One such item was a Faberge Egg, which he originally sold to a criminal know only as the Bulgarian, but after double-crossing him and selling it to another criminal, Donald Anderton. The group sneaks into their police officer neighbor and former friend, Gary, to seek information on both criminals.

After learning where Anderton lives, the group heads over to retrieve the egg. During which, the Bulgarian calls and demands that they give him his egg by midnight, or Brooks dies. Brooks is then kidnapped by the Bulgarian's supposed men, who tell them to meet them at the bridge. After an ordeal getting the egg back, the egg is smashed on the way to meet, only for them to learn the egg is worthless, yet contained a mysterious list.

At the meet, Gary arrives and is shot in the process. However, after a tearful goodbye, Gary reveals he set-up the kidnapping, bribing the two criminals he found with less jail time to teach the group a lesson after ignoring him. Believing the whole thing was made-up by Gary, Max hands him the list they found in the egg. To Gary's shock, he tells them it's a list of locations of people in the Witness Protection Program.

At that moment, the real Bulgarian comes in and demands the list from Brooks. Brooks, in a selfless attempt to save his brother, swallows the list. Angered, the Bulgarian takes Brooks to his private jet, planning to cut his stomach open to retrieve the list. Max and Annie go to save him. After a skirmish between Max and the Bulgarian, the Bulgarian is defeated and left unconscious.

What became of him afterwards is unclear, but he most likely was arrested.