Thornn

Thornn is a Marvel mutant and the sister of Feral, sharing her sibling's feline physical traits — including claws, fangs, and enhanced animalistic abilities. She debuted as a street-hardened survivor with a complicated, rivalry-tinged relationship with her more infamous sister.

Clawing her way onto the scene in X-Force #6 in 1992, Thornn is a Marvel mutant who emerged from the gritty, kinetic energy of the Copper/Modern Age — an era defined by bold new voices like Rob Liefeld and Fabian Nicieza, who brought her to life amid the explosive early days of X-Force. Over nearly three decades of comics history, she's kept fierce company with the likes of Domino, Warpath, Sam Guthrie, and Feral, appearing across X-Force, New X-Men, and the Deadpool Epic Collection. With a collector-significant key issue to her name and a presence that has persisted from 1992 all the way to 2021, Thornn is one of those compelling figures who rewards the dedicated reader willing to dig into Marvel's mutant corners.