One Of The Best Actor In The World And Best Acting Performance As A Character Tony Stark Robert Downey Jr. Also Known As Iron Man And RDJ. Iron Man Character Is The Fictional Character Of The Marvel Cinematic Universe. Is The Inspiration Of The So Many People. Once Upon He Was A Drug Addict And Now He Is One Of the Most Expensive Actor In The World He Is Also Known As Sherlock Holmes He Is A Fictional Character Of Detective. One Of The Best Actor In The World And Also One Of The Greatest Personality