Kes

Kes was an Ocampan[?], a race native to the Delta Quadrant. She was taken into the Starship Voyager crew with her partner, Neelix[?]. Kes has mysterious metaphysical[?] powers that were relatively unknown, even to herself.

Kes developed a close relationship with The Doctor during her time as an assistant medical technician.

She left the Voyager crew when she "evolved" into a different state, but before she left she threw Voyager 20 years closer to Earth. (The Gift). She visited Voyager one more occasion, in a time-travel story.