Avengers Endgame, released in 2019, is not just a climax for the Infinity Saga but also a reunion of over twenty figures from the Marvel Cinematic Universe. The film’s script, written by Christopher Markus and Stephen McFeely, intentionally brings together a core group while granting screen time to supporting characters that shaped prior storylines.
Unlike earlier Avengers films where a handful of heroes dominated, Endgame’s ensemble extends to every major member of the team, the Guardians, and even the time‑traveling strangers who join the final battle. Recognizing the distinction between principal actors and cameo appearances is essential to understand the narrative flow and character arcs.