"I Hate That They Made Me Do That": 15 Times Actors Transformed Or Destroyed Their Real Hair For A Role

Hair often feels like a major part of your personal identity. Sometimes, actors have to give up their preferred style in order to fully embody the character they were cast to play.

Here are 15 actors who underwent serious hair transformations for a role (and if they loved or hated it):

1.Here's Michael Cera in early 2024, before he bleached his hair for a role in the upcoming Wes Anderson flick, The Phoenician Scheme.

Michael with short, dark hair in a dark suit stands in front of a screen with partially visible text
Frazer Harrison / Getty Images

Ahead of his appearance on Late Night with Seth Meyers that July, the producer told Seth that Michael wanted him to know beforehand that he'd gone blonde. The actor said, "Well, I kind of want to apologize for it a little bit. My hair is in a weird place right now. And I know this is going out on TV and everything, but that's all I wanted to say, really."

Michael with blonde, curly hair is sitting and smiling on a talk show set, wearing a button-up shirt

Here's a before and after:

Michael with dark hair
Michael with dark hair

2.This is what Ariana Grande's hair looked like a few years before she was cast as Cat Valentine on Victorious.

Ariana with long, dark,curly hair, wearing a t-shirt that says "13 the musical"
Joe Corrigan / Getty Images

She "had to bleach [her] hair and dye it red every other week for the first 4 years of playing Cat...as one would assume, that completely destroyed [her] hair."

I don’t know who they are. A person in floral pajamas giving a peace sign while sitting in a kitchen

Here's a before and after:

Ariana with dark curls
Ariana with dark curls

3.Here's Leon Thomas III's hair in 2016, the year before he played Darryl in Detroit, which is set in the '60s.

Leon wearing a hat and a collared shirt with a necklace, standing against a dark backdrop. His hair is in shoulder-length dreads
Paul Redmond / WireImage / Via Getty

He had to cut his dreads for the role. In 2023, he told the Zach Sang Show, "I hated that. I hate that they made me do that."

Leon with short hair, wearing a blazer and bow tie and standing on stage in a theater

Here's a before and after:

Leon with shoulder-length dreads
Leon with shoulder-length dreads

4.This is Rooney Mara's hair before she cut it to play Lisbeth Sanders in The Girl with the Dragon Tattoo.

Rooney with wavy hair wearing a sleeveless top, standing in front of a backdrop with logos
Noel Vasquez / Getty Images

In 2011, she told Style magazine, "My wardrobe has completely changed. It had to, partly because of my hair and partly because I stopped feeling comfortable in what I used to wear."

Rooney with short dark hair, wearing a leather jacket and scarf, gazes to the side. Indoors, with blurred background

"I don't feel comfy in those clothes anymore because I have been living as Lisbeth for 14 months," she said.

Baldur Bragason/©Columbia Pictures/Courtesy Everett Collection

Here's a before and after:

Rooney with long hair
Rooney with long hair

5.Here's KJ Apa's naturally dark hair in A Dog's Purpose, which he filmed before he was cast as the iconic redhead Archie Andrews in Riverdale.

KJ Apa, with dark hair, is playing an acoustic guitar and singing into a microphone on stage with stagelights in the background
Michael Kubeisy / © Lionsgate / courtesy Everett Collection

Dying his hair and eyebrows red required eight hours in the salon, and keeping them that way required touch-ups every two weeks.

KJ, with his hair dyed a vibrant color, in a varsity jacket, standing in a hallway

Here's a before and after:

KJ Apa with dark hair
KJ Apa with dark hair

6.Here's Joey King's hair the year before she shaved it off to play Gypsy Rose Blanchard in The Act.

Joey with long, dark hair, wearing a sweater vest over a collared shirt
Jb Lacroix / WireImage / Via Getty

In 2018, she told Allure, "I've never really had an attachment to my hair. I couldn't care less what happens to it. No part of me was nervous or was second-guessing it. So many people would ask me, 'Are you really scared?' or 'Are you nervous?' or say, 'You're so brave.' And I'd go, 'I'm not brave. I'm just cutting my hair off.'"

Joey, bald with a bow on her head, is seated in a wheelchair wearing large glasses and a floral outfit

Here's a before and after:

Joey with long, dark hair
Joey with long, dark hair

7.Here's Tom Hiddleston's naturally blonde hair before he played the titular role in Loki.

Tom, with slicked-back blonde curls, in a suit with a bow tie poses on a formal event backdrop
Wwd / Penske Media via Getty Images

At Megacon Orlando, he said, "Both seasons of Loki, I've used my own hair. I've grown it out, and I've dyed it."

Tom, with shoulder-length dark hair, in a prison uniform wearing a monitor as a collar

"It's always a moment when the dye goes in...It's quite strange. It is a transformation, that first day when it's dyed. Brushing my teeth at the end of the day, I go, 'Oh, there he is!'"

©Disney+/Marvel Studios / courtesy Everett Collection

Here's a before and after:

Tom with curly blonde short hair
Tom with curly blonde short hair

8.This is what Daniel Radcliffe's hair looked like before he got extensions for the role of Igor in Victor Frankenstein.

Dan, with short hair, wearing a dark shawl-collared cardigan stands against a plain background with arms crossed
Larry Busacca / Getty Images

In 2013, he told The Graham Norton Show, "It's real, dead human being's hair...It's from, I assume, a dead person or a person that donated their hair."

Daniel, with a bob,  in a Victorian-era suit in a dimly lit, cluttered workshop setting
Daniel, with a bob, in a Victorian-era suit in a dimly lit, cluttered workshop setting
Daniel with long hair and are wearing a suit jacket and tie, smiling during a talk show interview
Daniel with long hair and are wearing a suit jacket and tie, smiling during a talk show interview

Alex Bailey / TM & copyright © 20th Century Fox Film Corp. All rights reserved / courtesy Everett Collection, BBC / Via youtube.com

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Here's a before and after:

Daniel with short hair
Daniel with short hair

9.This is what Cynthia Erivo's hair looked like a few months before she was cast as Elphaba in Wicked.

Cynthia, with short, light hair, stands in a music studio with a piano and guitar in the background, wearing a sleeveless, geometric-patterned dress
52nd Naacp Image Awards / via Getty Images

Before filming, she shaved her head so that her scalp could be painted green under her wigs.

Cynthia, head shaved, singing onstage
Cynthia, head shaved, singing onstage
Elphapa with long, dark har pulled back
Elphapa with long, dark har pulled back

The Walt Disney Company via Getty Images, © Universal Pictures /Courtesy Everett Collection

In 2024, she told Vanity Fair she "would love to do that again."

Here's a before and after:

Cynthia with short, light hair
Cynthia with short, light hair

10.This is what James Marsters's hair looked like on Northern Exposure, a few years before he began playing Spike on Buffy the Vampire Slayer.

James wearing clergy attire with a clerical collar, appearing thoughtful. His hair is dark and curly
CBS

The label bottle of bleach he used to get Spike's platinum hair warned that it should only be used every six weeks, but he "did it every eight days, because a vampire is dead so your hair doesn't grow so you can't have roots."

Spike with short, styled, platinum hair and wearing a dark V-neck top against a textured background

Here's a before and after:

James with short, dark hair
James with short, dark hair

11.Here's what Hayley Kiyoko's hair looked like before Lemonade Mouth.

Hayley with short hair and bleached side bangs, wearing a tank top and scarf
Michael Tullberg / Getty Images

In a 2022 TikTok, she said, "I've been holding onto this secret for so long – almost 10 years – and I feel like I have to tell you the truth about Stella’s haircut. It wasn’t supposed to be asymmetrical. We were going for a symmetrical look, and my hair stylist cut my hair too short on one side, and we didn’t have enough time to get extensions to even it out."

Hayley in a t-shirt with the words "Question Authority" is sitting down. The shirt has pins on the sleeves, and her hair is shoulder-length on one side and chin-length on the other

She continued, "So, we rocked the asymmetrical look … and we made it Stella’s vibe – and that is how Stella got her haircut and some of you got yours too.”

Disney Channel / Via Disney+

Here's a before and after:

Hayley with a bob
Hayley with a bob

12.Here's Tom Felton with his natural blonde hair in a pre-Harry Potter role in Anna and the King.

A young Tom with light hair and a bow tie is outdoors, looking to the side
20th Century Fox / Via youtube.com

To play Draco Malfoy, he famously bleached his hair, which was "agony" and "felt like fire ants were nibbling at your scalp."

Platinum blonde Draco holds a lantern in a forest setting

Here's a before and after:

Tom with natural blond hair
Tom with natural blond hair

13.Here's Kevin Bacon in 1982, a few years before the $1500 haircut that "sort of started that kind of, you know, thing, with the look," leading to his casting as Ren McCormack in Footloose.

Kevin Bacon with shoulder-length hair and plaid shirt
Lynn Goldsmith / Corbis/VCG via Getty Images

At the 2024 Tribeca Film Festival, he said, "I thought to myself…they told me that the haircut was going to cost $1,500, which is an outrageous amount of money in 1984, right?" He shot a few scenes, but the production scene sent a studio head a compilation of him "trying to be cool" during a wardrobe test.

A person in a white tank top leans against a yellow structure, looking directly at the camera with one hand on their head

He said, "They started playing it, and she watched, the legend is, she watched 30 seconds, the lights were still out, she stood up, and said, 'Yeah, you can hire him, that's fine.'"

(c) Paramount / courtesy Everett Collection

Here's a before and after:

Kevin with shoulder-length hair
Kevin with shoulder-length hair

14.This is what Kaley Cuoco's hair looked like in The Big Bang Theory Season 7, before she debuted the pixie cut she got for the role of Katy in the indie movie Burning Bodhi.

Kaley, with long hair, wearing pajamas and a heart-shaped necklace in a scene
Monty Brinton/©CBS / courtesy Everett Collection

In The Big Bang Theory: The Definitive, Inside Story of the Epic Hit Series, she said, "At that point, we were heading into our eighth season, and something needed to shake up. I was bored and sick of the hair, and what's funny is I thought by cutting my hair, I would spend less time in the hair and makeup chair, even though I loved the hair and makeup team."

Kaley with short hair smoking a cigarette while looking out of a car window in a scene

Here's a before and after:

Kaley with long hair
Kaley with long hair

15.And finally, here's Keri Russell's hair before her infamous onscreen haircut in Felicity Season 2.

Keri, with long, curly hair, stands on a plaza with pigeons flying around
©Touchstone Television/Courtesy Everett Collection

At the 2018 ATX TV Festival, she said, "The way it all totally went down was they were wrapping up the first season…and the hair people were putting away everything they had into boxes, and there was a little boy's wig. We put it on me at like 2 in the morning as a joke…and we took a Polaroid, and over the summer, we thought it'd be really funny to send to J.J. [Abrams] and Matt [Reeves] and say, 'I cut my hair — hope you like it.' Totally as a joke...I was with my girlfriends at some lake, and I got this phone call…and [J.J.] said, 'Hey, we got your picture.' No laughing. No nothing. 'Would you really cut your hair?' And I was like, 'I guess?'"

Keri with short curly hair in a sleeveless top, looking at the camera, with a blurred colorful background

Here's a before and after:

Keri with long, curly hair
Keri with long, curly hair

Which hair transformation do you think the actor should've kept? Let us know in the comments!