10+ Actors Whose Physical Transformations Leave Viewers Open-Mouthed In Disbelief

Jessica Wilson
Nov 03, 2023
Nov 03, 2023

Acting is a demanding craft that goes well beyond memorizing lines. It calls for total immersion into a character, and sometimes, this means undergoing remarkable physical changes. In the world of cinema, actors are often seen as the chameleons often required to go to great lengths to breathe life into their characters. Beyond delivering lines, they even alter their bodies to an extreme, whether it's losing or gaining significant weight, or donning tons of prosthetics.

In the article, we’ll explore 10+ incredible stories of actors who have gone to extraordinary lengths to transform their bodies and captivate audiences. Do you join us? Let’s dive in!

#1. Tom Hardy

Source: Vertigo Films

Tom Hardy made an enormous effort for the character Charles Bronson. In a week, he put on 7lbs without steriods. He continued to eat unhealthy food like pizza or coca cola to put more players in his body.

#2. Chris Hemsworth

Source: Warner Bros. Pictures

Chris’s weight went down around 15 pounds for the character Owen Chase in the historical movie 'In the Heart of the Sea.' The actor shared, “When you’re already starting off lean, it’s brutal to chew through that kind of weight. Every pound feels like a kilogram.” He felt insane when weighing every day.

#3. Anne Hathaway

Source: Universal Pictures

Anne Hathaway took home an Oscar for her convincing performance as the doomed Fantine in 'Les Miserables.' Many might not know that Anne made a huge effort for this character, undergoing an extremely strict diet. She became thinner and thinner when just eating two squares of dried oatmeal paste per day.

#4. Matt Damon

Source: Warner Bros. Pictures

He went through significant physical transformations for different characters. For "Courage Under Fire" in 1996, he shed almost 40 pounds in less than 100 days to portray a soldier battling addiction. The weight loss took a toll on his adrenal gland, leading to a year-long recovery. In "The Informant" (2009), he gained 30 pounds by indulging in junk food to play a corporate whistleblower. Later, for "Elysium" (2013), he built a muscular physique.

#5. Tom Hanks

Source: 20th Century Fox

Tom Hanks nailed the role of Chuck Noland, a busy FedEx executive stuck on a deserted island in the film ‘Castaway.’ For his role, the actor reduced nearly 55 lb in 4 months. He had to undergo a tough exercise routine and a strict diet. He always felt hungry and that was why he consumed a large amount of vegetables.

#6. Vincent D'Onofrio

Source: Warner Bros. Pictures

Vincent D'Onofrio, known as a charming, attractive guy, made women run away due to his physical transformation for the role of Leonard in ‘Full Metal Jacket.’ To portray the fat, inept recruit, he gained around 70 pounds and shaved his hair. “I gained weight everywhere,” the actor said. “My thighs were tremendous, my arms were tremendous, even my nose was fat.”

#7. Renée Zellweger

Source: Buena Vista Pictures

Renée had to undergo a tremendous transformation, going from a size 2 to a size 14 when portraying her lead role in Bridget Jones's Diary (2001). For the role of Toxie Hart in Chicago, she continued to lose her weight to a size 0, and just gained the weight back until she played the character of Bridget Jones in the 2004 sequel.

#8. Michael Fassbender

Source: Pathé Distribution

Michael Fassbender's dedication to his role in the 2008 film 'Hunger' is truly impressive. He portrayed Bobby Sands, a young prisoner who died after a 66-day hunger strike. Fassbender’s off-screen efforts included a strict daily diet of only 900 calories and a combination of exercises like skipping, yoga, and walking, resulting in a remarkable 42-pound weight loss.

#9. Jared Leto

Source: Focus Features

To portray a transsexual with AIDS in ‘Dallas Buyers Club,’ Jared Leto had to lose 40 pounds. He shared that he stopped eating and it was a huge challenge. For his big effort, the actor won an Oscar for Best Supporting Actor.

#10. Rooney Mara

Source: Sony Pictures

It’s hard to imagine how Rooney Mara worked out to embed "pale, anorexic" Lisbeth Salander in “The Girl With The Dragon Tattoo.” It is said that while others enjoyed the meal, the actress just ate lettuce and a grape. She even barely touched a piece of fish though she ordered it.

#11. Colin Farrell

Source: Picturehouse Entertainment

Colin Farrell put on 40 lbs in 2 months for his role in the comedy “The Lobster.” HE told People, “I just ate and didn’t move for a while,... It was stuff I normally eat, but just a lot more of it. People talk about portion control – there was no control!”

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10+ Actors Whose Physical Transformations Leave Viewers Open-Mouthed In Disbelief

#1. Tom Hardy

#2. Chris Hemsworth

#3. Anne Hathaway

#4. Matt Damon

#5. Tom Hanks

#6. Vincent D'Onofrio

#7. Renée Zellweger

#8. Michael Fassbender

#9. Jared Leto

#10. Rooney Mara

#11. Colin Farrell

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