Runaway is a Romany beauty with great strength. Runaway's touch is dangerous since physical touch allows her to become an exact copy of the person she is touching. She replicates both the person's look and power. After some time, she reverts back to her normal form. Runaway was a member of the Judgment League Avengers and defected, along with other members, to create JLX.
Runaway has a romantic relationship with Wraith, the only person she can touch without side effects. But, his darkness seems to affect her, and begins to drive her mad.