Arnold Schwarzenegger’s son resembles half-brother…
Seeing double.
Arnold Schwarzenegger’s son, Christopher, bore a hanging resemblance to his half-brother, Joseph Baena, in a sequence of post-weight-loss pictures from the household’s Thanksgiving vacation.
Christopher, 28, appeared thinner and more muscular than ever in two pics that his older sister, Katherine, 35, shared to Instagram on Monday.
Christopher Schwarzenegger regarded better than ever while celebrating Thanksgiving with his well-known household this vacation season. Katherine Schwarzenegger/Instagram
Arnold Schwarzenegger and his son, Joseph Baena, at the Season 2 premiere of “Fubar” in Los Angeles, California, on June 11, 2025. FilmMagic
“So much to be thankful for,” she wrote in the caption alongside the carousel of pictures of her well-known household.
Besides exhibiting off her brother and his spectacular weight-loss journey, Katherine also included pics of her mother and father, her other siblings and her film star husband, Chris Pratt.
Arnold, 78, and Maria Shriver, 70, welcomed Katherine, Christina, 34, Patrick, 32, and Christopher before separating after 25 years of marriage in May 2011.
Katherine Schwarzenegger shared a number of snaps from the Schwarzenegger household’s Thanksgiving on Instagram on Dec. 1, 2025. Katherine Schwarzenegger/Instagram
Arnold Schwarzenegger and Joseph Baena at the Season 2 premiere of “Fubar” in Los Angeles, California, on June 11, 2025. Getty Images for Netfix
Shriver filed for divorce from the “Terminator” star two months after he revealed he fathered a secret son, Baena, 28, in 1997 with the household’s housekeeper, Mildred Baena.
Although Shriver filed for divorce from the “Conan the Barbarian” star in 2011, the pair didn’t finalize their break up until December 2021. However, they continue to be comfortable co-parents to their grownup youngsters.
Christopher, meanwhile, opened up about his 30-pound weight-loss journey during an interview with People revealed back in May.
Maria Shriver and Christopher Schwarzenegger attend the premiere of “Avatar: Fire and Ash” in Los Angeles, California, on Dec. 1, 2025. REUTERS
Arnold and Christopher Schwarzenegger celebrating Oktoberfest in Munich, Germany, on Sept. 26, 2025. People Picture/Willi Schneider/Shutterstock
“I started in 2019 when I was living in Australia,” he recalled. “I was on this big trip. I made it a big [deal] like, ‘Oh, I’m going to go out and do all this stuff in Australia,’ and I just saw how much my weight was prohibiting me from doing the everyday activities.”
“I was like, ‘I want to go skydiving.’ And my friends were like, ‘Yeah, no shot. ‘I was like, ‘Yeah, I can’t skydive,’” the “Total Recall” star’s son added.
But Christopher confirmed off his transformation more lately while out and about with his household at a pumpkin patch in Brentwood, California, back in October.
Christopher Schwarzenegger confirmed off his weight loss transformation again while at a pumpkin patch in Brentwood, California, in October. Stoianov / BACKGRID
Christopher Schwarzenegger out and about in Manhattan on Oct. 29, 2025. BrosNYC / BACKGRID
As for Arnold, he opened up about how he helped his and Shriver’s youngest son with his weight loss journey over the summer time.
“I could never go and say to him, ‘You’re overweight,’” the actor-turned-politician told The Times in June. “We just kept introducing healthy foods. We introduced him to the gym and all of that kind of stuff.”
“And then, out of nowhere, he decided that he wanted to be lean,” Arnie added. “And now he is. So that is, of course, fantastic, the self-discipline and the self-motivation. I always felt one day it will have to come from him – and it did.”
Joseph Baena attends a screening of “Christy” in Hollywood, California, on Oct. 25, 2025. Getty Images for AFI
Joseph Baena during a screening of “Christy” in Hollywood, California, on Oct. 25, 2025. WireImage
Like Christopher, Baena struggled with his weight growing up as effectively. However, the actor and fitness model has since devoted his life to figuring out and eating healthy.
“People sometimes forget that I used to be chubby in high school,” Baena captioned an Instagram post in July. “I got cut from my basketball and soccer team because I couldn’t keep up with the other kids. Swim didn’t have tryouts thankfully and completely changed my life forever.”
“That was my introduction to Fitness and training,” he added. “Everyone starts somewhere but starting is the most important.”
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