(written from a Production point of view)
Irving Ross is an actor who appeared in several episodes of Star Trek: The Next Generation and Star Trek: Voyager. As a background actor he received no credit for his appearances. His costume from the episode "Rightful Heir" was sold off on the It's A Wrap! sale and auction on eBay. 
In 1997, Ross appeared as a Botanic Garden Gala guest in the comic adaptation Batman & Robin, which also features John Glover, Alex Daniels, Steve Blalock, Mark Chadwick, Dennis Keiffer, Jean-Luc Martin, Jim Palmer, Paul Sklar, Greg Bronson, Adolphus Hankins, and Spice Williams.