27 Actors That Underwent Killer Transformations For Roles In True Crime Shows

Why are we so obsessed with true crime?

True crime has a way of pulling viewers in, especially when a familiar actor disappears into the role of a real-life figure. The genre may feel newer than it is, but streaming and podcasts have made it impossible to miss.

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From The People v. O. J. Simpson: American Crime Story to The Act and Law & Order: True Crime, these projects asked actors to do more than perform, they had to become people tied to some of the most notorious cases in recent memory. That kind of transformation is part makeup, part performance, and part nerve.

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Here are 27 actors who pulled off some seriously killer transformations for true crime shows.

1. Penelope Cruz

The Spanish actress wore a very blonde wig to play Donatella Versace, sister of Gianni Versace, in Ryan Murphy's The Assassination of Gianni Versace: American Crime Story.

1. Penelope CruzMike Marsland/WireImage; RSKM/BACKGRID
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2. Addison Timlin

The actress played Colleen Stan, a kidnap victim who was kept in a box and used as a sex slave for seven years by Cameron Hooker in the movie Girl in the Box.

2. Addison TimlinGetty Images; Lifetime
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3. Sarah Paulson

The actress was awarded an Emmy for her portrayal of Marcia Clark, the lead prosecutor in FX's The People v. O. J. Simpson: American Crime Story.

3. Sarah PaulsonGetty Images; FX

4. Renée Zellweger

Zellweger underwent a dramatic transformation with the help of prosthetics and body padding to play her role as Pam Hupp in NBC's The Thing About Pam.

4. Renée ZellwegerNBC/Getty Images

5. Darren Criss

The former Glee star took on the role of spree killer Andrew Cunanan in The Assassination of Gianni Versace: American Crime Story.

5. Darren CrissCindy Ord/Getty Images; BACKGRID

6. Eric Dane

The former Grey's Anatomy star played a member of the Manson Family, Charles "Tex" Watson, in the 2014 TV movie Helter Skelter.

6. Eric DaneWireImage / CBS

7. Zelda Williams

The daughter of the late Robin Williams took on the role of Cameron Hooker's wife and accomplice, Janice Hooker, in the TV movie Girl in the Box.

7. Zelda WilliamsMichael Bezjian/WireImage; Lifetime

8. Rob Lowe

Lowe donned a mustache when he took on the role of former police sergeant Drew Peterson, who was convicted of his third wife's death, in Lifetime's Drew Peterson: Untouchable.

8. Rob LoweGetty Images; Lifetime

9. Cuba Gooding Jr.

The Oscar winner portrayed O.J. Simpson in The People v. O. J. Simpson: American Crime Story.

9. Cuba Gooding Jr.Getty Images; FX

10. Taryn Manning

The actress starred as a 10-year kidnapping victim, Michelle Knight, in the Lifetime movie Cleveland Abduction.

10. Taryn ManningGetty Images; Lifetime

11. John Travolta

The actor returned to his TV roots when he played the famed defense attorney Robert Shapiro, who was part of O.J. Simpson's legal team in The People v. O. J. Simpson: American Crime Story.

11. John TravoltaGeorge Pimentel/WireImage; Netflix

And if you want real red-carpet drama, the Best-Dressed Stars At Oscars 2026 list is already turning heads.

12. Edie Falco

The actress portrayed defense lawyer Leslie Abramson in the first season of Law & Order: True Crime, which focused on the famous Menendez brothers' murder case.

12. Edie FalcoGetty Images; NBC

13. Jessica Biel

Biel sports oversized glasses and curly hair to become the accused ax-murderer Candy Montgomery in the Hulu series Candy.

13. Jessica BielTina Rowden/Hulu/Getty Images

14. Tania Raymonde

The actress donned the infamous hairstyle of Jodi Arias in the made-for-television movie Jodi Arias: Dirty Little Secret.

14. Tania RaymondeWireImage / Lifetime

15. Al Pacino

The iconic actor wore quite the wig as the eccentric super-producer and titular character Phil Spector in HBO's Phil Spector.

15. Al PacinoPhil Caruso/GAME CHANGE, Stefanie Keenan/Getty Images for Turner

16. Joey King

The actress had to shave her head for the role of Gypsy Rose Blanchard in Hulu's mini-series The Act.

16. Joey KingRich Fury/Getty Images; Brownie Harris / Hulu

17. Patricia Arquette

Patricia Arquette gained a significant amount of weight to play Gypsy Rose Blanchard's mother, Dee Dee Blanchard, in The Act.

17. Patricia ArquetteEarl Gibson III/Getty Images; Brownie Harris / Hulu

18. Edgar Ramirez

The actor drastically changed his appearance for his role as Gianni Versace, the murdered Italian fashion designer, in Ryan Murphy's The Assassination of Gianni Versace: American Crime Story.

18. Edgar RamirezSplash News

19. Christina Ricci

The star stepped up for the role of the infamous Lizzie Borden in both the TV movie Lizzie Borden Took an Ax and the mini-series The Lizzie Borden Chronicles.

19. Christina RicciFilmMagic / Lifetime

20. Rob Lowe

For some reason, the actor is drawn to true crime. This time, Lowe played the victim, Ben Novack Jr., in the made-for-TV movie Beautiful & Twisted.

20. Rob LoweFilmMagic / Lifetime

21. Alyssa Milano

The Charmed actress played the infamous teen Amy Fisher in Lifetime's film Casualties of Love: The Long Island Lolita Story.

21. Alyssa MilanoGetty Images / CBS

22. Connie Britton

Connie Britton took on the role of Debra Newell in Bravo's true-crime TV series Dirty John.

22. Connie BrittonTodd Williamson/NBC/NBCU Photo Bank via Getty Images, Bravo

23. Jean Smart

The Fargo veteran is almost unrecognizable as Debra's mother, Arlane Hart, in Dirty John.

23. Jean SmartROBYN BECK/AFP/Getty Images, Bravo

26. Eric Bana

The star returned to TV for the role of John Meehan, a con artist with a penchant for rich women, in Dirty John.

26. Eric BanaNBC/NBCU Photo Bank via Getty Images, Bravo

25. Hayden Panettiere

The actress starred as Amanda Knox, who was wrongfully convicted of murder, in the Lifetime movie Amanda Knox: Murder on Trial.

25. Hayden PanettiereGetty Images; Lifetime

24. Paul Walter Hauser

Hauser lost 40 pounds and had hair and makeup teams perfectly style his hair and muttonchop sideburns to play suspected serial killer Larry Hall in Apple TV+'s Black Bird.

24. Paul Walter HauserTaylor Hill/FilmMagic, Apple TV+

27. Gethin Anthony

The Game of Thrones star underwent quite the physical transformation to play the role of the Manson Family's leader, Charles Manson, in the drama Aquarius.

27. Gethin AnthonyRon Batzdorff/NBC, David M. Benett/Dave Benett/Getty Images

Have you seen any of the shows mentioned in the list? Do you think the actors did a good job, or did they hit the serial killer mark?

Let us know what you think of the shows in the comments section. And if we missed an actor who you thought nailed their role in a true-crime show, drop their names below!

Wait, Drea de Matteo making $75,000 on OnlyFans after her kids suggested content is wild.

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