1. Papa Doc: Haiti's President for Life

A profile of François Duvalier (1907-1971), who ruled Haiti from 1957 to 1971 and declared himself president for life in 1964.

2. Stalin: Russia's Steel Tyrant

A profile of Joseph Stalin (1878-1953), the Soviet tyrant who ruled for 29 years and was responsible for some 20 million deaths.

3. Mao: China's Chairman of Death

A profile of Mao Tse-tung (1893-1976), who ruled Communist China for nearly three decades.

4. Bin Laden: A Terrorist Mastermind

A profile of Osama bin Laden (1957-2011), who was born into a wealthy family in Saudi Arabia but became the leader of Al Qaeda.

5. Hitler: The Benchmark of Terror

A profile of Adolf Hitler examines his childhood and difficult relationship with his father.

6. Kim: North Korea's Evil Dynasty

A profile of Kim Jong Il, the supreme leader of North Korea from 1994 to 2011.

8. Tojo: Japan's Razor of Fear

A profile of Hideki Tojo (1884-1948), a Japanese general and prime minister during World War II who was sentenced to death and executed in 1948 for committing war crimes.

9. Mussolini: The Father of Fascism

Benito Mussolini (1883-1945) rises through the Socialist ranks to become Italy's fascist dictator and Hitler's ally during World War II.

10. Gaddafi: Mad Dog of the Middle East

A look at the reigns of the some of the world's most notorious dictators and despots begins with Libyan leader Muammar Gaddafi (1942-2011), who ruled for more than four decades before he was captured and killed during the Libyan Civil War.