Alliance of Evil
A young valley girl with electrical-based mutant powers, Stinger was a member of the Alliance of Evil, Apocalypse's original strike force.
Because of her youth, Stinger often handled situations recklessly, as seen when she accidentally killed Michael Nowlan's girlfriend, Susan. During their battles with X-Factor, Stinger often flirted with Angel, much to his annoyance. Stinger stayed with the Alliance of Evil when they defied the Mutant Registration Act, and later battled the New Mutants with the team.
Wendy was among the mutants who kept their powers after the M-Day, and consequently joined the mutants on Utopia, the X-Men's new home base, feeling that she had no choice but to live among her kind.
Fearing rumors of an impending attack, and feeling isolated, she sought reassurance in Iceman who admitted to having been attracted to her, even in their initial confrontations. Shooting off a joke to lighten the mood, Iceman inadvertently offended her, leading her to take Dr. Kavita Rao hostage in an attempt to leave the island. Only willing to negotiate with Iceman, he eventually talks her down, defusing the situation. Later, the two are seen having a picnic and enjoying each others' company.
Stinger was among the mutants gathered to listen to Cyclops' speech making them all X-Men, as the Nimrods were invading the island.
Her current whereabouts are unknown.