A child from an Italian immigrant family, Al Capone, also known as "Scarface," rose to infamy as the leader of the Chicago Outfit, an organized crime syndicate during the Prohibition era.

Henry Hill was a member of the Lucchese crime family who became a federal informant, inspiring the Martin Scorsese movie 'Goodfellas.'

Gangster Dutch Schultz built up a criminal network that included bootlegging, illegal gambling and murder. His biggest enemies were Legs Diamond and the IRS.

The two-night docuseries event, 'GOTTI: Godfather & Son,' tells the story of the legendary Gambino crime family through the intimate and complicated relationship between John Gotti Sr. and his son, John Gotti Jr. Airs Saturday & Sunday at 10/9c on A&E.

Mickey Cohen became the West Coast racket boss in 1947, after his mentor and predecessor, Bugsy Siegel, was assassinated.

By the 1960s, gangster and drug kingpin Frank Lucas had constructed an international drug ring that spanned from New York to South East Asia.

Whitey Bulger was a prominent figure in Boston's organized crime scene from the 1970s until the mid-'90s, when he fled the area. Captured in 2011, he was later found guilty of federal racketeering, extortion, conspiracy and 11 murders.

Carlos Marcello was best known as the mob boss of New Orleans, and for the FBI's investigation of his possible involvement in JFK's assassination.

Reggie Kray and his twin brother Ronnie teamed up to become two of England's most notorious gangsters of all time.

With his identical twin Reggie, gangster Ronnie Kray ruled the streets of London's East End in the 1950s and 1960s.

Arnold Rothstein was a Jewish-American mob boss who inspired a character in 'The Great Gatsby' and was portrayed in the HBO series 'Boardwalk Empire.'

Meyer Lansky, an organized-crime figure known for his sharp financial acumen, was instrumental in the development of a national crime syndicate in the United States.

Lucky Luciano was an Italian-born American mobster best known for engineering the structure of modern organized crime in the United States.

New York gangster Joe Gallo was both a hero and villain; a very public criminal who hung out with pop stars and was immortalized in the Bob Dylan song, Joey.

Tony Spilotro is best known as a ruthless Chicago mob representative in Las Vegas from the 1970s to the '80s. He was brutally beaten and murdered by other mobsters in 1986.

Tony 'Big Tuna' Accardo turned to a life of crime in his early teens, and quickly rose to infamy as a soldier in Al Capone's Chicago Crime Syndicate.

Iconic mobster Benjamin "Bugsy" Siegel built the Flamingo casino in Las Vegas, igniting an era of glamour, gambling and gangsters in the desert.

John Dillinger was an infamous gangster and bank robber during the Great Depression. He was known as "Jackrabbit" and "Public Enemy No. 1."

"Mad Sam" Destefano was an infamous Chicago loan shark who was known to torture and kill those who defied him or failed to pay their debts.

Jack "Legs" Diamond was a Prohibition-era mob leader, hit man and bootlegger who was based in New York.

Donnie Brasco was the alias of Joseph Pistone, an undercover FBI agent that infiltrated the Bonanno crime family.

Anthony Casso is a member of the Lucchese crime family who was the first major crime boss to be kicked out of the witness protection program.

Vincent Gigante was an Italian-American mobster who led the Genovese crime family of New York City from the early 1980s until 2005.

Joseph Valachi was a part of Lucky Luciano's mob family from the 1930s through the 1950s.