Robert Downey Jr. Is An Acting Legend, So We Rounded Up Five Of His Best Roles Including "Oppenheimer"

Paramount Pictures

Notably one of his biggest roles, Robert plays the part of Tony Stark, an engineer who becomes superhero Iron Man. In 2008, Ben Stiller wrote a piece for The Time 100 on Robert's role where he observed, "Yes, Downey is Iron Man, but he really is Actor Man". Ben also added, "finally, he gets to have his cake and let us eat him up all the way to the multiplex, where his mastery is in full effect." President of Marvel Studios, Kevin Feige, stated that casting Robert was "one of the greatest decisions in Hollywood history."