Catalyst

Debuting in the pages of Who's Who: Update '87 — DC's beloved encyclopedic showcase — Catalyst is a Copper Age creation from writer Bob Greenberger who has quietly carved out a niche across more than three decades of DC continuity. With appearances spanning Blue Beetle, JSA by Geoff Johns, and The New Teen Titans, this character moves through some genuinely storied corners of the DC Universe, sharing pages with luminaries like Green Lantern, Doctor Fate, Blue Beetle, and Hawkgirl. Rare in the catalog but persistent across 31 years, Catalyst is exactly the kind of deep-cut discovery that rewards the dedicated DC reader willing to dig beneath the surface.