Supergirl

Few characters carry a name as iconic as Supergirl, and this particular incarnation made her entrance in 1988's Superman #16, brought to life by the legendary John Byrne during comics' Copper Age — a bold reimagining for a bold new era. Over a remarkable 36-year publishing history, she's woven herself into the fabric of DC's universe, appearing most prominently in Adventures of Superman and Superman while keeping extraordinary company alongside Clark Kent, Green Lantern, Matrix, and Darkstar. With a key issue already to her name and appearances stretching deep into the Modern Age, this is a Supergirl with serious staying power — a character whose legacy rewards both the curious newcomer and the dedicated collector hunting down every chapter of her story.