MCU Ladies + TV Tropes – Breakout Character
When Peggy Carter debuted in the comics, it was to be a Temporary Love Interest to Captain America during his time in World War II…and she debuted in The Sixties, long after Cap’s regular WWII war stories were over. At first she appeared only in Flashbacks (in her first story she wasn’t even named!).Under these circumstances, she’s rarely been anything more than a Satellite Love Interest in the comics. But when Captain America: The First Avenger came out, since 99% of the film takes place during the War, she naturally had a much bigger role. She took center stage in the Marvel one-shot “Agent Carter”, which was such a huge hit that it spun off into her own regular TV series.It’s worth noting that the filmmakers have tried to use Peggy in every single (Earth-bound) MCU vehicle after The First Avenger. Joss Whedon wrote a scene for her in The Avengers, and she has cameos in The Winter Soldier, Agents of S.H.I.E.L.D., Age of Ultron, and Ant-Man. This character has seriously resonated with her audience.