Videos: Top 10 Long-Running Superhero Portrayals

This is a new video from WatchMojo that lists the top 10 long-running superhero portrayals. Robert Downey Jr. is set to play Iron Man once again in Avengers: Infinity War, having played the character since 2008. But he;s not the only one to play a superhero for a long period of time. Check out the video below to see who made the list.