In 2018 , Robert Downey Jr. appeared as Iron Man in Avengers : Infinity War .
Downey reprised the role again in Avengers : Age of Ultron ( 2015 ) , Captain America : Civil War ( 2016 ) , Spider-Man : Homecoming ( 2017 ) , and Avengers : Infinity War ( 2018 ) .After Iron Man , Downey appeared alongside Ben Stiller and Jack Black in the Stiller-directed Tropic Thunder .
Robert Downey Jr.