Sinbad

Stepping into the high-stakes world of Metropolis in 1990, Sinbad made their debut in the pages of Action Comics #657, brought to life by the acclaimed team of Roger Stern and Kerry Gammill during comics' Copper Age. With only a handful of catalog appearances spread across Action Comics and Adventures of Superman, this is a rare, intriguing figure who shares the page with some of DC's heaviest hitters — Superman, Lex Luthor, and Clark Kent among them. Brief appearances can carry outsized weight in the right story, and any character woven into the fabric of Metropolis alongside that legendary cast is worth a second look for the dedicated collector hunting overlooked gems.