Harlan Kleinstock

Harlan Kleinstock is one of the Kleinstock Brothers, mutant members of the Acolytes — fanatical followers of Magneto. He and his brother Sven serve the master of magnetism's cause, operating as enforcers within the zealous group dedicated to mutant supremacy.

Harlan Kleinstock arrived in the pages of Uncanny X-Men #298 in 1993, a creation of Scott Lobdell and Brandon Peterson that planted its roots firmly in Marvel's fertile Copper/Modern Age soil. A member of the X-Men with a presence stretching remarkably across nearly three decades, Harlan is one of those characters whose longevity quietly speaks for itself — turning up in X-Men, Uncanny X-Men, and Magneto: Dark Seduction alongside a compelling roster that includes Sven Kleinstock, Joanna Cargill, Amelia Voght, Magneto, and Colossus. With 19 catalog appearances spread across 28 years, he's a deep-cut figure who rewards the dedicated collector willing to dig into the layered, morally complex storytelling that defined Marvel's mutant corner of the '90s and beyond.