10 celebrities that transformed themselves to play real-life murderers

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Celebs like Zac Efron and Charlize Theron have played murderous characters.

Many of these roles are found in "American Horror Story"

Here are some of your favorite celebrities that played real-life killers.

True crime in media is a phenomenon. From shows like Netflix's "Making a Murderer" to FX's "American Crime Story," it's fascinating to watch the real stories behind famous crimes.

It only makes sense that sometimes our favorite stars are also interested in these stories — and the real people who committed these horrible crimes.

Here are some of the celebrities that have played real-life murderers. Charlize Theron Aileen Wuornos in "Monster"

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We know Charlize Theron as a stunning and talented actress. But her acting ability was really tested when she was asked to transform into serial killer Aileen Wuornos for 2003's "Monster."

Wuornos, who was sentenced to death for her crimes, had been convicted of killing seven men over the course of one year. Theron's performance won her the Academy Award for Best Actress that year.

Dean Cain Scott Peterson in "The Perfect Husband: The Laci Peterson Story"

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Former Superman Dean Cain lent his talents and weirdly similar appearance to the role of Scott Peterson in 2004's "The Perfect Husband: The Laci Peterson Story." Peterson was convicted of the murder of his nine-month pregnant wife in 2002.

Gary Oldman Lee Harvey Oswald in "JFK"

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Before he was playing a beloved "Harry Potter" character or getting Oscar buzz for his portrayal of Winston Churchill, Gary Oldman had a decidedly different kind of role. In Oliver Stone's 1991 film "JFK," Oldman played the part of John F. Kennedy's shooter Lee Harvey Oswald with stunning accuracy.

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