Gretkora's species were a humanoid species native to the Delta Quadrant. They had different various features like Humans, including some members having tanned skin and different body shapes, but all individuals had round green eyes, elongated hands with slender fingers, and brown hair. Seven of Nine and the Doctor crashed their shuttle on the species' planet. Paralyzed from her shoulders down, Seven was taken care of by Doctor Gretkora until the Voyager could come and rescue them. (VOY short story: "Choices")