Jonah Hill Is Unrecognizable With Bald Head in Role Transformation

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Jonah Hill Shows Major Weight Loss Transformation While Filming New Movie

Are you McLovin Jonah Hill’s new look?

The Superbad alum was nearly unrecognizable in a photo from the set of Apple TV’s upcoming film Outcome, which he stars in alongside Keanu Reeves.

On top of the significant weight loss he first debuted on the set of Cut Off in October, Jonah took his transformation a step further on the upcoming dark comedy, trading his typical curly hair for a bald look.

And while Jonah typically keeps a clean-shaven face, he donned a long, gray bushy beard and glasses for the film, in which he plays Ira, a crisis lawyer for beloved Hollywood star Reef Hawk (Keanu).

Outcome, which Jonah also co-wrote and directs, will officially hit the platform April 10 and follows protagonist Reef as he is extorted in exchange for a career-ending video. The film also stars Cameron Diaz and Matt Bomer.

This is not the first time Jonah has undergone a drastic transformation for a role. In 2016, he lost a significant amount of weight for his War Dogs role, enlisting some admittedly simple advice from 21 Jump Street costar Channing Tatum.

“I called Channing Tatum and said, ‘Hey, if I eat less and go to a trainer, will I get in good shape?’” he recalled during an appearance on The Tonight Show at the time. “He’s like, ‘Yeah, you dumb motherf--ker, of course you will. It’s the simplest thing in the entire world.’”

But while the 42-year-old has been open about his weight loss journey, he has been just as candid with the body image struggles he’s endured in the public eye.

“I don't think I ever took my shirt off in a pool until I was in my mid 30s even in front of family and friends,” Jonah wrote in a since-deleted 2021 Instagram post. “Probably would have happened sooner if my childhood insecurities weren't exacerbated by years of public mockery about my body by press and interviewers.”

Apple TV

In the post, though, Jonah shared that he had come to “finally love and accept” himself and encouraged his followers to do the same.

“You're wonderful and awesome and perfect,” he added. “All my love”

For more stars who transformed for roles, keep reading…

Instagram / Channing Tatum

Channing Tatum

The Magic Mike star's weight has fluctuated over the years, especially in 2024, as he got into character for two back-to-back movie roles.

He said on Instagram in March 2025 that he currently weighed 205 pounds—up from the 172 pounds he weighed for Roofman (pictured, right). Months before beginning production on that 2024 film, he shot the movie Josephine (pictured, left) and weighed 235 pounds for his role.

Jose Perez/Bauer-Griffin/GC Images; Blank Archives/Getty Images

Timothée Chalamet

For his Oscar-nominated role as musician Bob Dylan in A Complete Unknown, the Dune actor learned how to sing and play guitar.

"I also put on 20 pounds," he said during a January 2025 episode NPR’s All Things Considered podcast, "because, believe it or not, I was thinner than the guy.”

David Fisher/Shutterstock, Universal Pictures

Cillian Murphy

To play scientist J. Robert Oppenheimer in Christopher Nolan's Oppenheimer, the Irish actor "had to lose quite a bit of weight," he shared. "He was very slim, almost emaciated, existed on martinis and cigarettes." His diet? According to costar Emily Blunt, "He had such a monumental undertaking.And he could only eat, like, an almond every day."

Christopher Polk/NBC; DC Comics/Warner Bros./Shutterstock

Joaquin Phoenix

For his Joker role, the Oscar winner opened up about his 52-pound weight loss, telling the Associated Press, "Once you reach the target weight, everything changes. Like so much of what's difficult is waking up every day and being obsessed over like 0.3 pounds. Right? And you really develop like a disorder."

Getty Images; Instagram

J.K. Simmons

The Spider-Man alum shocked fans when he debuted his bulging biceps, which were displayed in Justice League.

Andrew H. Walker/Getty Images; Bold Films/Kobal/Shutterstock

Jake Gyllenhaal

"I'd say my mother was worried," he previously told E! News after losing 30 pounds for Nightcrawler. "I would say she just wanted me to be careful. But she also knew and knows how seriously I take what I do and she respects that."

Can Nguyen/Shutterstock

Orlando Bloom

The Pirates of the Caribbean alum detailed the physical and emotional toll of losing 52 pounds for his boxing movie The Cut.

“I was exhausted mentally, physically. I was hangry,” he said on This Morning. “I was a horrible person to be around. The paranoia, the intrusive thoughts.”

“I wouldn’t recommend doing it at home, by the way,” he continued. “It was definitely not something to take lightly.”

Andrew H. Walker/Getty Images; Barry Wetcher/Warner Bros/Mgm/Kobal/Shutterstock

Michael B. Jordan

The Black Panther star gained nearly 30 pounds of muscle to transform into a rookie-turned-professional boxer in Creed.

Pascal Le Segretain/Getty Images; Anne Marie Fox/Voltage/Kobal/Shutterstock

Jared Leto

The actor and musician nabbed an Oscar for his riveting role in The Dallas Buyers Club. He lost 40 pounds for the role.

Gary Gershoff/WireImage; Claire Folger/Warner Bros/Kobal/Shutterstock

Chris Messina

The Mindy Project alum had to gain 40 pounds for his role in Live by Night.

Jim Smeal/WireImage, Jeff Kravitz/FilmMagic

Renée Zellweger

The Bridget Jones's Diary actress gained weight to portray the lovable character in the franchise's first and second films.

Warner Bros/Kobal/Shutterstock; Voltage Pictures/Kobal/Shutterstock

Matthew McConaughey

The Magic Mike hunk dropped 30 pounds to star in The Dallas Buyer's Club—which centered on the real-life story about a man dying from AIDS in the 1980s who treated himself with alternative remedies he smuggled into the United States from Mexico.

Jason LaVeris/FilmMagic; Ibl/Shutterstock

Rooney Mara

The actress looked lean and strong for her starring role in The Girl With the Dragon Tattoo.

Pascal Le Segretain/Getty Images; Working Title Films/Kobal/Shutterstock

Anne Hathaway

The Les Misérables star took home an Oscar for her role in the musical.

Isa Foltin/WireImage; Moviestore/Shutterstock

Christian Bale

He's no stranger to morphing for movie roles. In 2004, he lost more than 60 pounds for his role in The Machinist, and he did it again for the film The Fighter, opposite Mark Wahlberg. He also gained 40 pounds for American Hustle—and lost 70 pounds for Ford v Ferrari.

Bei/Shutterstock; Disney/Kobal/Shutterstock

Jake Gyllenhaal (Again)

The actor looked more like a god than a prince for his role in 2010's Prince of Persia. Gyllenhaal said he studied Parkour, the French art of street running, in order to bulk up for the film.

Francois Duhamel/20th Century Fox/Dreamworks/Kobal/Shutterstock

Tom Hanks

"All it is is time and discipline," the Oscar winner told Time magazine of his role in 2000's Cast Away, for which he lost over 50 pounds to play a man stranded on an uninhabited island.

Lawrence Lucier/FilmMagic; Twitter

50 Cent

The ripped rapper shocked fans with a photo of himself looking slender. He reportedly went from 214 to 160 pounds in just nine weeks to play a football player diagnosed with cancer in Things Fall Apart.

Ron Galella Collection via Getty Images; Moviestore/Shutterstock

Robert De Niro

Shaping up for movie roles is nothing new. The legendary actor earned an Oscar nom for his role as terrifying tattooed rapist Max Cady in the 1991 thriller Cape Fear.

Vivien Killilea/Getty Images; Matt Kennedy/Annapurna/Kobal/Shutterstock