Thanos is a character that appeared in multiple Marvel-endorsed products.
Thanos ( [ ˈθænɒs ] , [ ˈθænoʊs ] ) is a fictional supervillain appearing in American comic books published by Marvel Comics . Thanos appears in the Marvel Cinematic Universe 's various films , including The Avengers ( 2012 ) , portrayed by Damion Poitier , and Guardians of the Galaxy ( 2014 ) , Avengers : Age of Ultron ( 2015 ) , Avengers : Infinity War ( 2018 ) and its untitled sequel ( 2019 ) , portrayed by Josh Brolin . The character has appeared in other Marvel-endorsed products , including animated television series , arcade , and video games .