It's challenging to determine the absolute richest actor in the world due to fluctuating earnings, investments, and net worth. However, prominent actors such as Shah Rukh Khan, Tom Cruise, and George Clooney have amassed considerable wealth through their successful careers in film and television. Additionally, figures like Dwayne "The Rock" Johnson and Tyler Perry have diversified their income streams through ventures in production, entrepreneurship, and endorsements, further solidifying their financial success. Ultimately, the title of the richest actor may vary depending on the source and criteria used for measurement.