Deanna Troi
- Full Name: Deanna Troi
- Born: March 29, 2336; Betazed (TNG: "Conundrum")
- Species: Human/Betazoid hybrid
- Gender: Female
- Father: Ian Troi
- Mother: Lwaxana Troi
- Sister: Kestra Troi
- Husband: William Riker (2379 - Present)
- Daughter: Natasha Riker-Troi
- 2352: University of Betazed, psychiatry
- 2355: Cadet, Starfleet Academy medical track (TNG: "Conundrum")
- 2358: Lieutenant junior grade, internship, Darona facility for criminally insane (TNG novel: The Battle of Betazed)
- 2364: Lieutenant commander, chief counselor, contact specialist, Starfleet; USS Enterprise (NCC-1701-D) (TNG: "Encounter at Farpoint")
- 2372: Commander, chief counselor, contact specialist, Starfleet; USS Enterprise (NCC-1701-E) (Star Trek: First Contact)
- November 2379: Commander, chief counselor, contact specialist, Starfleet; USS Titan (Star Trek: Nemesis; TTN)