Marina Sirtis

Marina Sirtis

Deanna Troi is a main character in the science-fiction television series Star Trek: The Next Generation and related TV series and films, portrayed by actress Marina Sirtis. Troi is half-human, half-Betazoid and has the psionic ability to sense emotions. She serves as the ship's counselor on USS Enterprise-D. Throughout most of the series, she holds the rank of lieutenant commander. In the seventh season, however, Troi takes the bridge officer's examination and is promoted to the rank of commander, but continues as counselor. Deanna appears in all four Next Generation theatrical films, and also made guest appearances on Voyager, Enterprise and Picard. Her romantic interests, family, and personal life are plot elements in many Star Trek: The Next Generation episodes over the course of the series.

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