(written from a Production point of view)
Jay Harrington (born 15 November 1971; age 46) is the actor who played Doctor Ravoc in the Star Trek: Voyager episode "Workforce, Part II". His costume was sold off on the It's A Wrap! sale and auction on eBay. 
Harrington was born as James H. Harrington III in Massachusetts and is maybe best known for his recurring role as Dr. Ron McCreadie in the second season of Desperate Housewives (2006), where he appeared alongside Teri Hatcher, Alfre Woodard, Brenda Strong, Mark Moses, Bob Gunton, Skip Stellrecht, Kristin Bauer, and under director Robert Duncan McNeill.
He also had recurring roles as Theodore Blumethal in the crime series The Division (2001-2002), as Steve Taylor in the comedy series Coupling (2003), as Dr. Simon O'Keefe in the drama series Summerland (2004-2005), and as Special Agent Paul Ryan in the crime series The Inside (2005, co-starring Rachel Nichols).
Among his other television appearances are Pacific Blue (1998), The Pretender (1998), Nash Bridges (1999, with Andrea Robinson), The Shield (2003, with Michael Jace, Benito Martinez, and Kelvin Yu), Without a Trace (2004, with Enrique Murciano, Matt Winston, and Ron Marasco), Las Vegas (2004, starring Nikki Cox), and Ghost Whisperer (2005, with Kat Sawyer-Young).
Harrington has also performed in several feature films, including the comedy Enough Already (1998), the drama Anywhere But Here (1999, with Faran Tahir, Scott Burkholder, and Stephanie Niznik), the comedy Whatever It Takes (2000, with Manu Intiraymi), the horror film Octopus (2000), the comedy Partner(s) (2005, with Saul Rubinek and Christine Romeo), and the television pilot The News (2007). More recent projects include American Reunion (2012) with John Cho.