Bruce Willis, 57 years sexy. Best known for his roles in the Die Hard franchise, The Fifth Element, and The Sixth Sense. He also starred in the recent sci-fi film Looper, where you can also see Joseph Gordon-Levitt prosthetically made to look like a younger version of him.
Clive Owen, 47 years sexy. Best known for his roles in the films Closer, Inside Man, and Children Of Men. He also played probably the hottest literary figure of all time, Ernest Hemingway, earlier this year in Hemingway and Gellhorn on HBO.
For more sexy check out the underseen gem The Boys Are Back.