Illy

The Doctor and Gwen Roberts  visited Illy and Felix in  Great Minds Think Alike

Origin
Illy is a human born on a space station near Saturn. Her parents are Gordon and Isa. Illy lives on Pluto in a human outpost.

Human-Lapino Alliance
Illy and Felix were the first humans to be involved in the Human-Lapino Alliance, which the Doctor and Gwen helped form. The lapino they befriended was Rolile, who was injured when he crash landed on Pluto. Illy  helped him heal.

Personality
Illy is a very bubbly girl. She loves an adventure. She is very caring. She seems to be ditsy at times but is very intelligent.