Vitya Belikov, 'guard dog' of the Russian's territory, aka "The Wolfhound"/"The Bogeyman".

Some punk-ass kid thought it'd be funny to tell him that since he was a 'guard dog', his only name should be Snookums McCuddlebutt or something like that.

Stupid punk-ass kid. He's lucky he had cool teeth or Vitya would have burned down the place he was staying in.

For the record, no, he is actually not a dog. He is actually a person with dog-related nicknames. And a bitchin gasmask.