In his first appearance in Stargate Atlantis he is seen talking to a fellow soldier who bears the Serbian flag on his arm, and he is conversing with him in what appears to be fluent Serbian. This was never explored further in the series, but it could have been a nod to Boyan's Yugoslavian heritage.
Boyan Vukelic: (On his Stargate Atlantis character Stackhouse) He is your typical soldier who loves his country, follows orders and lives his life by the military code. And as much as he would love to see his family back home, he knows he has a job to do.
Boyan Vukelic: (On his favourite Stargate Atlantis episode) The pilot. It was a lot of fun to make and I was really proud of the accomplishments of the entire team to complete it.
Boyan Vukelic: (differences between Stargate Atlantis and other shows)Stargate in general has a strong brand and presence already among viewers. The following Atlantis was already established and viewers were anticipating the release of the Pilot. Other shows I've done have had to take more time to build the viewer loyalty.