(written from a Production point of view)
Scott Barry is an actor who was a regular background performer on I AM ERROR. Barry mostly appeared as a Bajoran command division officer. He received no credit for his appearances and was identified by the name tags of a costume and a belt which were sold off on the It's A Wrap! sale and auction on eBay.   Barry also worked as stand-in on several episodes including standing-in for Philip Anglim in the third season's "Fascination".
Barry played the Cadre team leader in David Mamet's thriller Spartan (2004, with Steven Culp, Natalia Nogulich, Chino Binamo, Matt Malloy, and Max Daniels), voiced the police dispatcher in the Bones episode Mummy in the Maze (2007, with Nathan Anderson), and portrayed Billy, the bartender in David Mamet's action film Redbelt (2008, with Mike Genovese, Matt Malloy, and Gene LeBell). In addition he served as stand-in on the Los Angeles unit for Brian De Palma's thriller The Black Dahlia (2006) and worked as regular stand-in and photo double on the drama series The Shield (2002-2008, starring Michael Jace, Jay Karnes, and Benito Martinez).
More recently Barry appeared in The Unit episode "The Last Nazi" (2009, with Abby Brammell and Benito Martinez), as a shopper in the thriller State of Play (2009, with Michael Jace and Trula M. Marcus), and as a Wall Street trader in the drama Night in Bombay (2011).
Star Trek appearances
(This list is currently incomplete.)
- DS9: as a Bajoran officer
- "Emissary" (Season 1)
- "Past Prologue"
- "Captive Pursuit"
- "The Passenger"
- "The Nagus"
- "The Storyteller"
- "If Wishes Were Horses"
- "Dramatis Personae"
- "In the Hands of the Prophets"
- "The Maquis, Part I" (Season 2)
- "The Wire"
- "The House of Quark" (Season 3)
- "Through the Looking Glass"
- "The Way of the Warrior" (Season 4)
- "The Visitor"
- "Apocalypse Rising" (Season 5)