(written from a Production point of view)
Nora Leonhardt is an actress who served as stand-in for Marina Sirtis during the entire run of Star Trek: The Next Generation and on the feature films Star Trek Generations and Star Trek: First Contact. She also portrayed a regular background character, a Starfleet ensign on The Next Generation. In addition, Leonhardt worked as stand-in for several guest stars including Barbara Alyn Woods in the second season episode "The Schizoid Man", Rhonda Aldrich in the fourth season episode "Clues", Bebe Neuwirth, Carolyn Seymour, and Sachi Parker in the episode "First Contact", Susan Gibney and Jana Marie Hupp in the episode "Galaxy's Child", Deborah Taylor in the episode "Night Terrors", Maryann Plunkett in the episode "Identity Crisis", Jennifer Hetrick in the episode "Qpid", Cristine Rose in the sixth season episodes "Birthright, Part I" and "Birthright, Part II", Robin Curtis in the seventh season episodes "Gambit, Part I" and "Gambit, Part II", Susan Christy in the episode "Homeward", and Amy Pietz in the episode "Bloodlines". Leonhardt also worked as stand-in and photo double for Roxann Biggs-Dawson on the first season of Star Trek: Voyager.
Leonhardt was also scheduled to appear as an Enterprise-D crewmember in a corridor in the fourth season episode "The Mind's Eye" and at the conn in the episode "Redemption" but was replaced by fellow background performers. Leonhardt was absent during the filming of the fifth season episodes "Unification I" til "The Outcast" and was replaced by fellow stand-in Melba.
Other television appearances include featured parts in Silk Stalkings, Valley of the Dolls Encino, and All My Children as well as several stage plays in New York, Los Angeles, and London. More recently, she appeared as Amy Heckerling's assistant in the short musical Not Your Time (2010, with Jason Alexander and James Avery) and in the short comedy Singing in the Park (2011).
Leonhardt has been working in the real estate industry as a Senior Real Estate Broker for the company Prudential Douglas Elliman in the New York City area for several years.