Firefly

Firefly — real name Garfield Lynns — is one of DC Comics' most underrated and visually striking villains, a pyromaniac mercenary and arsonist who has terrorized Gotham City since his debut in Detective Comics #184 in 1952. That landmark issue marks his first appearance as the so-called Human Firefly, making it a genuine Golden Age collectible and a key book for serious Batman rogues gallery hunters. Originally conceived as a special effects and pyrotechnics expert turned criminal, Lynns evolved over the decades from a relatively obscure villain into a genuinely dangerous threat defined by his obsession with fire and light.

The modern Firefly — armored, unhinged, and terrifying — took shape through stories in the Bronze and Modern Ages that deepened his psychological profile and gave him a power suit capable of generating intense heat and projecting devastating blasts of flame and light. His appearances across Batman, Detective Comics, and Birds of Prey cemented him as a recurring menace, while his membership in groups like the Secret Society of Super Villains and his ties to Black Mask's freed Arkham inmates placed him at the center of some of Gotham's most chaotic storylines. His role in major crossover events and street-level Bat-family arcs made him a dependable villain with surprising staying power.

Collectors have long appreciated Firefly's connection to the Suicide Squad, where his volatile skillset made him both an asset and a liability — exactly the kind of unpredictable wild card that made those stories so compelling. His appearances across the team's various incarnations give collectors multiple entry points, from key Bronze Age issues to modern relaunches. His inclusion in animated adaptations and video games also introduced him to a new generation, driving renewed interest in his print appearances.

For collectors, Firefly represents exactly the kind of character whose books are chronically undervalued relative to his significance. Detective Comics #184 is an affordable Golden Age key that serious Batman collectors simply cannot overlook. His Bronze Age resurgence issues and Modern Age power suit appearances round out a collection nicely, and his team book appearances span decades of DC history. Whether you're building a complete Batman rogues gallery or hunting for overlooked keys with breakout potential, Firefly's books deserve a permanent spot on your want list.