4. Ken Jeong (The Hangover Part One, 2009)
Kendrick Kang-Joh Jeong, better known as Ken Jeong is an American actor, comedian and licensed physician. Yes, the man arriving in fourth place in the risqué performances article is a real doctor who could treat you at a hospital in the state of California - were he still practicing of course. Which makes it all the stranger that he is famous for accepting any part of a role and being extremely willing to bare all for a role, even if the role doesn't call for it according to some unconfirmed sources out there. In The Hangover Part One, Jeong plays the gangster Leslie Chow with a charisma that few of the main actors can match (a probable exception being Zach Galifianakis). There are very, very few entrances that can match Ken Jeong's entrance to the Hangover series. If you have ever seen an actor first appear on screen by bursting out of the trunk of a car, leaping six feet vertically in the air, naked, and wrapping his legs around a co-stars head whilst simultaneously beating them with a crowbar, then you are in an extremely fortuitous position. For the uninitiated, you're welcome : https://www.youtube.com/watch?v=T_CUV0Er7EE