(written from a Production point of view)
Bernie Bielawski is an actor who portrayed Ferengi background characters in Star Trek: Deep Space Nine. He received no credit for his appearances and was identified by the name tag of his costume which was sold off on the It's A Wrap! sale and auction on eBay in an auction with another costume worn by fellow Ferengi background performer Vincent Carrera. 
Bielawski appeared as a taxi driver in the 1990 action thriller Hard to Kill alongside Star Trek performers William Sadler, Branscombe Richmond, Buddy Joe Hooker, Barbara Townsend, Philip Weyland, and Al Goto.