Thanos

A warlord convinced that wiping out half of all life is mercy, who gets exactly what he wanted and then loses it

Actor Josh Brolin

Role Type Villain

First MCU Film The Avengers (2012) (mid-credits scene, played by Damion Poitier; Josh Brolin from Guardians of the Galaxy (2014))

In Our 5 Films 2 of 5: The Avengers (2012), Avengers: Endgame (2019)

Official trailers for the 8 MCU titles Thanos appears in.