Rex the Wonder Dog

Few characters in DC's history can claim a debut in the Golden Age and still be turning up in comics more than half a century later, but Rex the Wonder Dog is exactly that kind of enduring marvel. Bounding onto the scene in All-American Western #125 in 1952, this remarkable canine carved out his own starring title — The Adventures of Rex the Wonder Dog — before proving his staying power by showing up decades later in series like Shadowpact and Green Lantern. Along the way he's shared pages with some of DC's most beloved figures, from Superman and Clark Kent to Green Lantern himself, as well as the fan-favorite Detective Chimp and the delightful Bobo T. Chimpanzee. That kind of company across 55 years of publishing history says everything — Rex isn't a footnote, he's a genuine piece of the DC tapestry, and for collectors who love the quirky, warm-hearted corners of the universe, he's absolutely worth seeking out.