Alligator

Lurking in the richly layered world of Kurt Busiek and Brent E. Anderson's Astro City, Alligator made their debut in 1999 — right as that celebrated series was hitting some of its most ambitious storytelling strides. A denizen of one of comics' most thoughtfully constructed superhero universes, this character shares the page with a compelling roster including Jack-in-the-Box, The Silver Agent, and Cleopatra, which tells you something about the vivid, morally complex corners of Astro City they inhabit. With appearances stretching across nearly a quarter century and collected across key Astro City volumes, Alligator is a testament to the depth Busiek and Anderson bring to even their supporting players — every face in Astro City has a story worth uncovering.