Peeper

A relatively fresh face in Marvel's mutant landscape, Peeper made their debut in 2021 courtesy of writer Peter Milligan and artist Salvador Larroca — stepping onto the page during one of the most ambitious and densely populated eras in X-Men history. With only a handful of appearances across Reign of X, S.W.O.R.D., and Trials of X, this is a character still finding their footing in the sprawling Krakoan age, sharing those pages with heavyweights like Emma Frost, Professor X, and Psylocke. Six appearances may be a modest tally, but in a Modern Age where new mutants can rocket to prominence overnight, Peeper is exactly the kind of discovery that rewards readers who love getting in on the ground floor.