Jean-Paul Duchamp

A steadfast presence in Marvel's lunar corner of the universe, Jean-Paul Duchamp made his debut in Moon Knight #1 in 1998, brought to life by the legendary Doug Moench and Tommy Lee Edwards. Over a remarkable 25-year stretch, this Modern Age figure has kept remarkable company — sharing pages with Moon Knight himself, Marlene Alraune, Marc Spector, and the villainous Black Spectre and Carson Knowles. Though his catalog appearances are select rather than sprawling, his longevity across a quarter-century speaks to a character with genuine staying power in one of Marvel's most atmospheric corners.