Amber

Amber Middleton is a member of Alpha Force, when she first appears in Survival she just appeared to be a spoilt rich girl, angry and devastated over the loss of her parents lives. Amber and Hex were almost constantly picking fights with one another. When they are shipwrecked and end up on a deserted island she slowly began to change, it was discovered that she was a diabetic, not that it ever holds her back from being a full member of Alpha Force. And she got on better with the other team members until they were a close-knit group.

It is hinted that she and Hex might be more than friends, not that they'd ever admit it of course.