Thanos appears in The Avengers ( 2012 ) , portrayed by Damion Poitier , and Guardians of the Galaxy ( 2014 ) , Avengers : Age of Ultron ( 2015 ) , Avengers : Infinity War ( 2018 ) .
Thanos only appears in the following Marvel Cinematic Universe films : The Defenders ( 2012 ) , Guardians of the Sun ( 2014 ) , Infinity Games ( 2018 ) and Taking Mars ( 2019 ) .
Thanos