The list of best actors in the world is constantly changing, as new talents come to light and others take the reigns. The main problem with this is that there are many people who are not informed about the up-and-comers, meaning they will never be able to know if they're missing out on something amazing. Jack Nicholson who is the best actor in world history. He has starred in some of the most classic and memorable films of all time, including The Shining, One Flew Over the Cuckoo’s Nest, and The Departed. His performances are always electric and he has a knack for making even the most evil characters somehow likable. He’s also one of the few actors to have won three Academy Awards.