Marta Dubois
Marta Dubois  was the actress who played the impostor  in the  fourth season episode .

Dubois was born in David, Panama. She previously co-starred opposite Stephen Collins and Elizabeth Lindsey in the television series Tales of the Gold Monkey, which lasted only one season, airing from September 1982 through June 1983. She also had a recurring role on Magnum, P.I. and made guest appearances on such series as Hardcastle & McCormick (starring Brian Keith and Daniel Hugh Kelly), The A-Team (with Dwight Schultz), L.A. Law (starring Corbin Bernsen and Larry Drake), Silk Stalkings, and Matlock.

She made her film debut with a supporting role in the 1979 drama Boulevard Nights, which also featured the late John Fiedler. She followed this with roles in the films Dead Badge (1995, with Raymond Cruz, Leland Orser, and James B. Sikking) and Blackout (1996, opposite Brad Dourif, Brad Greenquist, Lance LeGault, Tom Poster, Chip Heller, James MacDonald, Azalea Davila, and Jeremy Roberts). DuBois also appeared in the television movies Grace Kelly, opposite Salome Jens and William Schallert, and The Trial of the Incredible Hulk, with John Rhys-Davies.

In 2000, she co-starred with Scott Bakula and Robert Beltran in the romantic comedy Luminarias. Between 2005 and 2008, DuBois played Sergeant Roberta Hansen in ten McBride television movies opposite John Larroquette.

She later portrayed Dora in the television western Lone Rider (2008, with Mike Starr, Tom Schanley, and Jimmy Ortega) and had a guest role as Maria Cordero in the Law & Order: Los Angeles episode "Ballona Creek" (2010, with Patrick Fischler, Lisa Kaminir, Leonard Kelly-Young, Saxon Trainor, and Tom Virtue).

Dubois died on 8 May 2018 at the age of 65 from a brain aneurysm. (Screen Actors Guild Magazine, Special Edition 2019, p. 91)

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Performers
TNG performers