Joanna Cargill

Joanna Cargill, known as Frenzy, is a mutant possessing superhuman strength and near-invulnerable skin. She first emerged as a mercenary enforcer working with the Alliance of Evil, putting her formidable street-fighting skills and powerful physique to use against the X-Men and X-Factor.

Joanna Cargill burst onto the Marvel scene in 1986's X-Factor #4, a Copper Age debut that launched a career spanning nearly four decades and over a hundred appearances — a testament to just how compelling this character proved to be. She's moved through some of Marvel's most consequential mutant territory, earning team affiliations with both the X-Men and the Acolytes and racking up three collector-recognized key issues along the way. Her home turf across X-Men, The Uncanny X-Men, and S.W.O.R.D. puts her in the thick of the Marvel Universe's most pivotal mutant storytelling, sharing pages with heavyweights like Wolverine and Professor X himself. If you're tracing the rich, complex tapestry of mutantkind through the Copper Age and beyond, Joanna Cargill is absolutely a name worth knowing.