Deanna Troi

2364: Assigned to the USS Enterprise-D as ship's counselor
2365: Impregnated by an alien who wished to experience feelings & corporeal sensations
2369: Kidnapped & surgically altered to appear Romulan;
Helped the underground movement, returned to the Enterprise shortly afterwards
2370: Passed the Bridge Officer's Test & was promoted
2372: Assigned to the USS Enterprise-E as ship's counselor
2379: Transferred aboard USS Titan with her husband when he took command
2391: Retired from Starfleet after the death of her son
2401: Helped save the Federation from a Borg-Changeling attack