(written from a Production point of view)
Robin Gammell (born 22 September 1936) is an actor who played Ambassador Mauric in the Star Trek: The Next Generation seventh season episode "Attached" in 1993. His costume from this episode was later sold off on the It's A Wrap! sale and auction on eBay. 
Gammell was a regular cast member on the short-lived CBS series W.I.O.U. (1990-91), along with fellow Star Trek alumni Mariette Hartley, Phil Morris, Wallace Langham, and Harris Yulin. His other television credits include guest spots on Trapper John, M.D. (starring Madge Sinclair, in an episode with Salome Jens), L.A. Law (starring Corbin Bernsen, with Fran Bennett and Christopher Darga), Murder One (with Daniel Benzali, Barbara Bosson, John Fleck, Gregory Itzin, Stanley Kamel, and Deborah May), Dark Skies (with Jeri Ryan), Millennium (co-starring Megan Gallagher, Terry O'Quinn, and Bill Smitrovich), The Practice (with Willie Garson, Natalia Nogulich, and Craig Wasson), and Nip/Tuck (with K Callan and Michael Buchman Silver). He also had recurring roles on such shows as Wiseguy, Street Legal, and Judging Amy.
Gammell has many feature films to his credit, the first of which was 1973's The Pyx, starring Christopher Plummer. His subsequent movie credits include 1976's Lipstick (co-starring Chris Sarandon, Meg Wyllie, and Bill Zuckert), 1979's The Promise (co-starring Trek film actors Bibi Besch, Stephen Collins, and Laurence Luckinbill), 1983's Nightmares (directed by Joseph Sargent, in a segment co-starring Tony Plana), 1987's Project X (with William Sadler, Shelly Desai, Michael McGrady, Dick Miller, and Daniel Roebuck), 1991's Guilty by Suspicion (featuring Roxann Dawson and Stephen Root), and 1998's Bulworth (co-starring Paul Sorvino and Sarah Silverman). He also had smaller roles in popular movies like Dave (1993, starring Frank Langella), Sister Act 2: Back in the Habit (1993, starring Whoopi Goldberg), Austin Powers: International Man of Mystery (1997, featuring Charles Napier and Clint Howard), and Contact (1997, with Tucker Smallwood).
Gammell also appeared in the supporting role of Canadian cabinet minister C.D. Howe in the 1996 miniseries "The Arrow". More recent credits include the science fiction thriller Skyline (2010, with Scottie Thompson and J. Paul Boehmer), the short drama Herbert (2011), the drama Victory Blvd (2012), and the drama Lonely Boy (2013, with Richard Riehle).