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Deanna Troi
Deanna Troi, 2399.jpg
Commodore Deanna Troi in 2399
Full name: Deanna Troi
Nickname(s): Little One,
Species: half-Human, half-Betazoid
Gender: Female
Homeworld: Betazed
Born: March 29, 2336
Affiliation: Federation
Mother: Lwaxana Troi
Father: Ian Andrew Troi
Sibling(s): Kestra Troi
(sister, deceased)
Barin Troi
Marital Status: Married
Spouse(s): William T. Riker
(m. 2378)
Children: Ian Andrew Troi II
(b. 2365 died later that same year)
Natasha Riker-Troi
(b. 2381)
Thaddeus Troi-Riker
(son, deceased)
Kestra Troi-Riker
Other relatives: Rene Jacques Robert Francois Picard
3 grandchildren
Previous Assignment: Counselor,
USS Enterprise-D
USS Enterprise-E
Counselor and diplomatic officer,
USS Titan
Assignment: Counselor,
Starfleet Medical counselling division
Rank: Commodore
Insignia: Uniform badge insignia.
Uniform insignia.
"Captain, I'm sensing a – a powerful mind!"
— Deanna Troi

Deanna Troi is a half-Human, half-Betazoid female Starfleet officer who most famously served on the USS Enterprise-D and the USS Enterprise-E, as counselor and adviser to Captain Jean-Luc Picard.

She would marry and have a child with William T. Riker as well as serve with him on the USS Titan and then on Earth. In 2399, Deanna was promoted to the rank of commodore and was assigned to the Starfleet Medical counselling division as a counselor. (Star Trek: Picard)