Robert Downey Jr.

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Playing Iron Man certainly has its advantages.  The role helped return Robert Downey Jr. to his A-List star status, and made him one of Hollywood’s most bankable stars in the process.  The franchise is one of the biggest to hit theaters in recent memory, as is Sherlock Holmes - another popular series with RDJ as the protagonist.  The actor’s bankable value is estimated at $19.5 million a year.