Tuatara

Tuatara is one of those intriguing Bronze Age curiosities that DC's ambitious Who's Who: The Definitive Directory of the DC Universe brought into the light in 1985, courtesy of Len Wein — a character born from the grand project of codifying an entire universe's worth of heroes and lore. Over a publishing span that stretches into the 2000s, this DC figure turns up in the pages of Justice League International and Justice League Europe, sharing adventures with heavy hitters like Green Lantern, Captain Atom, and the masked Jack O'Lantern. With five catalog appearances including one key issue, Tuatara is a compact but genuine piece of DC's international superhero tapestry — exactly the kind of deep-cut discovery that makes digging through back-issue bins so rewarding.