Who is Captain Britain? The secret history of the MCU's new superhero
Published
Technically, she's not called Captain Britain. When agent Peggy Carter becomes a Union Jack-clad, Captain America-style shield-wielding superhero right at the start of episode 1 of What if, she insists only on a new rank: "Captain Carter."
Yet that's exactly what you'd expect from a true Captain Britain, who would be unlikely...