2. Machine Gun Kelly

Prohibition-era gangster George Francis Barnes Jr. makes a name for himself by committing crimes with a Thompson submachine gun.

3. Bonnie & Clyde

Bonnie Parker and Clyde Barrow target banks and gas stations during their early 1930s crime spree across rural America.

4. Dillinger

Depression-era gangster John Dillinger and his criminal gang gain notoriety with a string of bank robberies across the Midwest.

5. Pretty Boy Floyd

Depression-era criminal Charles Arthur "Pretty Boy" Floyd robs numerous banks and becomes Public Enemy No. 1 after John Dillinger is killed by federal agents.

6. Baby Face Nelson

Depression-era bank robber Lester Gillis, better known as Baby Face Nelson, begins his criminal career at an early age in the Chicago slums.

7. Barker Karpis

Fred Barker and Alvin Karpis' ruthless criminal gang commits bank robberies and kidnappings during the Great Depression.

8. Reynolds (Great Train Robbery)

Career criminal Bruce Reynolds organizes a gang of 15 men and schemes to rob a Royal Mail train carrying over 2 million pounds in cash.

9. The Krays

Twin brothers Ronnie Kray and Reggie Kray were English gangsters who were the foremost perpetrators of organized crime in the East End of London during the 1950s and 60s.

10. The Richardsons

Recount some of the gruesome shootouts, and audacious robberies that made each villain famous.