Captain Marvel

A New Orleans harbor patrol lieutenant, Monica Rambeau gained the power to transform her body into any form of electromagnetic energy after being exposed to extra-dimensional energy while destroying an illegal weapon. She can travel at light speed, fly, and project devastating energy blasts.

Few characters can claim a debut inside one of Marvel's most iconic team books, but Captain Marvel made exactly that entrance, arriving in The Avengers #300 in 1989 — a Copper Age arrival courtesy of Peter Sanderson, Marc McLaurin, and the legendary John Buscema. Nearly four decades of continuous publishing and 498 catalog appearances later, this is clearly a character who found their footing and never looked back, headlining their own Captain Marvel series while also turning up across Avengers and Guardians of the Galaxy — a sweep that takes them from street-level Marvel all the way to the cosmic frontier. Along the way they've shared pages with the absolute cream of the Marvel Universe: Captain America, Tony Stark, Thor, and Spider-Man among them, the kind of company that signals a character operating at the highest tier. With three key-issue appearances flagged by collectors and a publishing run stretching into 2026, Captain Marvel is both a piece of living Marvel history and a name that still commands real attention on the stands today.