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Deanna Troi

Deanna Troi
DeannaTroi.jpg
Commander Deanna Troi
Species Betazoid (maternal)
Human (paternal)
Affiliation United Federation of Planets
Starfleet
Posting USS Titan (NEM)
USS Enterprise-E
(FCT, INS, NEM)
USS Enterprise-D
(Seasons 1-7, GEN)
Position Diplomatic Officer
(USS Titan)
Counselor
(USS Enterprise-E,
USS Enterprise-D)
Rank Commander
(Season 7, Movies)
Lieutenant Commander
(Seasons 1-7)
Father Ian Andrew Troi (deceased)
Mother Lwaxana Troi
Children Ian Andrew Troi, II (deceased)
Partner William Riker
Portrayed by Marina Sirtis
First appearance "Encounter at Farpoint" (TNG)

Commander Deanna Troi /dˈænə/ 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. As of Star Trek: Nemesis she is credited as "Deanna Troi-Riker" because of her marriage to William Riker.

Deanna Troi was born on March 29, 2336, near Lake El-Nar, Betazed. Deanna's parents are Betazoid Ambassador Lwaxana Troi (portrayed by Majel Barrett), and deceased human Starfleet officer Lt. Ian Andrew Troi (portrayed by Amick Byram). An older sister, Kestra, was accidentally drowned during Deanna's infancy (see "Dark Page"). Although Deanna Troi has little exposure to Earth culture, she attended Starfleet Academy from 2355 to 2359, as well as the University on Betazed, and earned an advanced degree in psychology.


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