Christopher Markus and Stephen McFeely are American screenwriters and producers. They are known for their work in the Marvel Cinematic Universe, having written the three Captain America films (The First Avenger, The Winter Soldier and Civil War), Thor: The Dark World, Avengers: Infinity War and Avengers: Endgame, and created ABC's Agent Carter TV series. They are also the screenwriters of The Chronicles of Narnia film franchise.[1]Markus grew up in Buffalo, New York.[2]He earned a B.A. in creati