McConaughey and Harrelson Revisit Possible Family Ties in Brothers

Matthew McConaughey and Woody Harrelson are bringing a decades-long friendship to the screen in Brothers, an Apple TV comedy that explores the possibility that the actors could be biological half-brothers. The series premiered globally on September 23, 2026, reuniting the longtime friends in fictionalized versions of themselves while their real-life family mystery remains unresolved.

The question originated with a conversation involving McConaughey's mother, who told Harrelson that she had known his father. According to accounts the actors shared publicly, the timing of that relationship raised questions about whether the two performers might share a biological parent.

Neither actor has confirmed a familial connection through DNA testing. Harrelson has expressed interest in testing, while McConaughey has voiced concerns about the possible emotional consequences of either result.

In an interview with Variety, Harrelson recalled the conversation that first intensified his suspicions.

"Matthew’s mother, I’d known her 25 years, and she told me, ‘I knew your father.’ You know, like, with the ellipses: ‘I knew… your father,’" Harrelson told Variety. "She tells me, and I’m thinking, ‘What’s behind this story?’ And then I find out they weren’t just friends – there was a little more to it."

The actors have discussed the possibility publicly since 2023, when McConaughey described the conversation involving his mother and the subsequent examination of family timelines. Harrelson has maintained that a DNA test could settle the question, although the two have not announced a completed test.

At the premiere of Brothers on September 17, Harrelson reiterated his willingness to find out whether the theory was true.

"I'm ready to do it now. We can cross swords in the bathroom," Harrelson told USA TODAY on the red carpet.

McConaughey has explained that he worries a negative result could disappoint his friend. Harrelson, meanwhile, has indicated that discovering a biological relationship would be welcome.

"Because if it's not true, my buddy here is gonna be upset," McConaughey said, explaining his reluctance to proceed with testing.

"I would be very sad," Harrelson added. "But I'm pretty sure it's true."

Brothers uses the uncertainty as the foundation for a comedy that blends the actors' public personas with a fictional family-sitcom premise. The eight-episode first season began with two episodes on September 23, followed by weekly releases through November 4, according to Men's Health.

The series also reunites the performers following their work together on the 1999 comedy EdTV and the first season of True Detective. Their friendship, which spans approximately three decades, has become central to the show's premise.

McConaughey has also been revisiting an earlier chapter of his personal life while promoting the series. In a previously recorded interview from late 2002, he described wanting a relationship that developed naturally rather than according to a predetermined marriage timetable.

"The rhythm that we're talking about, you either have that or you don't, and you can't go look for it. You either fall in, and I mean I always say I just want to, you know, boom, look up and go, 'Oh, done. We're married and we have two kids, when did that happen?'

Not like, 'Okay, we need to set a date for this time.' I don't want ultimatums when it comes to love. . . you either choose to be who you are with that person because you like who you are with them, or you or you don't, you know? That's the natural selection part of it.

You find that you're sitting there going, 'Wow, we keep choosing each other. I really like this. I like you, and I really, like you as a partner.'"

McConaughey married Brazilian model and entrepreneur Camila Alves in June 2012 at their private estate in Austin, Texas. Their children Levi and Vida attended the wedding, and their third child, Livingston, was born six months later.

Outside the series, McConaughey has also discussed his favorite foods on Mythical Kitchen while promoting Brothers. His selections included sausage dipped in jalapeño-creamed corn from Opie's Barbecue in Spicewood, Texas, highlighting the Hill Country restaurant's place among his preferred barbecue stops.

The biological relationship between McConaughey and Harrelson remains unconfirmed, and neither actor has announced a definitive DNA test result.