Esme Cuckoo

One of the Stepford Cuckoos — that eerie, fascinating sisterhood who made their mark on the Modern Age of Marvel mutantkind — Esme Cuckoo debuted in 2003's X-Men #30, brought to life by the legendary Chris Claremont and Salvador Larroca. Her catalog presence spans an impressive two decades, placing her in the company of icons like Wolverine, Scott Summers, and Ororo Munroe across titles including X-Men: House of X & Powers of X. Small in appearance count but rich in context, she's one of those characters whose significance in the X-Men tapestry far outweighs the raw numbers — a compelling piece of the broader Cuckoo mythology that serious Modern Age collectors will want to track down.