Bart Coswell

A supporting player woven into the fabric of Peter David's celebrated X-Factor run, Bart Coswell made his debut in 1992 — right at the dawn of the Modern Age — and has kept some genuinely distinguished company, sharing pages with the likes of Quicksilver, Strong Guy, and Rahne Sinclair across nearly three decades of Marvel storytelling. His appearances are concentrated in the X-Factor titles that collectors now prize in omnibus and epic collection form, a testament to how fondly that era is remembered. With only a handful of catalog appearances, Bart is a true deep-cut find — the kind of background figure that rewards the dedicated reader who savors every corner of a landmark run.