Arnold Schwarzenegger was surrounded by his kids at the premiere for his new Netflix show, “FUBAR” this week.
But while the superstar cuddled up to his daughters Christina, 31, and Katherine, 33 — along with the latter’s “Guardians of the Galaxy” star husband Chris Pratt — his lookalike lovechild, Joe Baena walked the red carpet alone.
Even though Schwarzenegger remains extremely close to all five of his children, the actor’s four kids from his marriage to Maria Shriver still have nothing to do with Baena.
Their half-sibling is the product of the actor’s affair with the family’s former housekeeper, Mildred Baena.
Schwarzenegger and his son “are very close,” a source who knows the actor said. “But, to be honest, the other kids don’t love Joe. It’s a shame as he’s a really good kid, and Arnold has always treated him like all his other kids — very fairly. But for whatever reason, the other kids take [the affair] out on Joe.”
The red-carpet slight did not go unnoticed as Baena, 25 — who is a keen bodybuilder just like Schwarzenegger — posted a photo of himself at the premiere on social media, writing how proud he is of his dad.
“I give FUBAR a 2 thumbs up!!!” he wrote. “Had an amazing time last night at the FUBAR premier [sic]! In my unbiased opinion, FUBAR is a hilarious, action packed show that will have you on the edge of your seat the entire time!”
To this, one of Baena’s followers replied: “It’s disgusting how you are treated, man, by your own blood. Completely ignored due to something out of your control. Is it racial hostility? Who knows. At the end of the day use this bulls–t to fuel you.”
The follower added that Baena’s siblings “totally ignore him … They were even at the same premiere and took a photo together but completely avoided Joe.”
Another fan wrote: “That’s a shame. Arnie seem [sic] to love them equally tho, if not Joe a little more because he’s walking in his footsteps.”
Intriguingly, Baena did not delete the comments.
Page Six has reached out to Baena for comment.
Schwarzenegger did not replay, and a family rep had no comment.
As previously written, the children all have a difficult relationship with Baena, while Schwarzenegger has always paid for his son — including his college fees — and Mildred, buying her a house.
At 75, the former California governor — who was seen clutching a giant mug that read “World’s Best Dad” at the premiere — looks better than ever after undergoing heart surgery in 2018.
“I saw him a month ago and he looks fantastic,” a Schwarzenegger friend told Page Six.
He shares Katherine and Christina, as well as Patrick, 29, and Christopher, 25, with Shriver, a regular “Today” show contributor.
Katherine is making her own name with kids books, TV and charity work.
Patrick is a model and actor, while Christina is a documentary producer and a founding member of the Special Olympics Founder’s Council.
(Their grandmother, Eunice Kennedy Shriver, founded the Special Olympics in 1968.)
Christopher is into working out and graduated from the University of Michigan.
The “FUBAR” premiere was the first time the tension between Schwarzenegger’s children was on public display.
While onlookers told Page Six that Baena stayed to enjoy the after-party following the premiere at The Grove in Los Angeles, the other kids went home.
“Arnold is really close to Joe. I’ve been at several events where he’s brought him along,” the source said.
The source said that Baena is snubbed by his half-siblings, adding, “It’s not fair, but I guess it’s understandable — he’s the product of something that should not have occurred.”
Another source said: “The Schwarzenegger kids have consistently navigated the situation with respect and class.”
In “FUBAR,” Schwarzenegger plays an almost-retired CIA operative alongside Monica Barbaro as his daughter.
Baena happily chatted about his dad on the carpet, saying: “It’s always cute seeing his vulnerable, little fatherly side. I love it.”
When asked about what wisdom his action-hero father has imparted, Baena — who stars in the upcoming action film “Gunner” with Morgan Freeman and Luke Hemsworth and also had a stint on “Dancing with the Stars” — replied: “The main thing he always tells me is, ‘You gotta put the reps in. It’s practice, practice, practice.’”
Schwarzenegger and Shriver only divorced in 2021 despite separating in 2011.
The actor recently told The Hollywood Reporter that the split was “my f–k up, my failure,” admitting their divorce “was very, very difficult in the beginning.”
“Eventually, you move on.” he said. “I have a wonderful girlfriend, [physical therapist] Heather Milligan, who is very successful. I’m really proud of her, and I love her.
“At the same time, I love my wife [Shriver]. She and I are really good friends and very close, and we are very proud of the way we raised our kids.
“If there’s Oscars for how to handle divorce, Maria and I should get it for having the least amount of impact on the kids,” he joked. “The sweetness and kindness you see in them, that’s from my wife. The discipline and work ethic is from me.”
Page Six is told that Baena and Patrick have a bit of a relationship, and another source said the two were spotted recently working out in Santa Monica together.
However, Patrick does not follow Baena on Instagram.
Another family insider added: “Arnold loves all of his children. He has a great relationship with all of them.”