The longtime friends have never settled the question with a DNA test. Now their new Apple TV comedy turns the mystery into its central joke
Published : 19 Sep 2026, 11:49 AM
Matthew McConaughey and Woody Harrelson have spent years wondering whether they might actually be brothers.
Now they have made a television comedy out of it.
The longtime friends and “True Detective” co-stars play fictionalised versions of themselves in Apple TV’s new series “Brothers”, which takes one of Hollywood’s stranger real-life rumours and imagines what might happen if it turned out to be true.
The eight-episode comedy, premiering Sept 23, begins with Harrelson moving his family into McConaughey’s Texas ranch after his daughter’s wedding falls apart.
Things become considerably more complicated when McConaughey’s mother, played by Holland Taylor, lets slip a decades-old secret: the two friends might share a father.
Apple describes the series as a comedy about friendship, family, fame and “the messy line between myth and reality”.
The myth, however, did not come from a writers’ room.
McConaughey first publicly explained the story in 2023 on Kelly Ripa’s “Let’s Talk Off Camera” podcast.
He said he, Harrelson and their families had been in Greece when his mother, Kay, told Harrelson: “I knew your dad.”
McConaughey said the emphasis she placed on “knew” immediately caught everyone’s attention.
The friends then compared the timing and found that Harrelson’s father had been free during a period when McConaughey’s parents were separated, he said.
Harrelson subsequently told Esquire that Kay McConaughey had told him she had had a brief relationship with his father that coincided with the period around Matthew’s conception.
“We haven’t done a test,” Harrelson said in the 2023 interview, while pointing to the similarities he has long noticed between himself and McConaughey.
So far, neither actor has publicly disclosed DNA evidence that would settle the question.
But their relationship already resembles family life in plenty of other ways.
At the Los Angeles premiere of “Brothers” this week, McConaughey joked that Harrelson has a habit of turning up at his Texas home unannounced and staying considerably longer than expected.
A visit that begins as a quick “howdy” can stretch to three months, McConaughey told People.
Their families are close too.
Harrelson described McConaughey as a “great dad”, while McConaughey told People he has an uncle-like relationship with Harrelson’s three daughters.
The actors have known each other for decades, first working together on “EDtv” in 1999 before later appearing in “Surfer, Dude” and the acclaimed first season of HBO’s “True Detective”.
Their off-screen friendship has since become almost as familiar to fans as their collaborations.
“Brothers” simply takes that bond one step further.
In the series, Harrelson becomes determined to discover whether the family secret is true, while McConaughey has another problem to contend with: a possible run for governor of Texas.
Whether reality will ever provide the same answer remains unclear.
For now, McConaughey and Harrelson have taken an unresolved family mystery and turned it into their next act together.
“Brothers” premieres globally on Apple TV on Sept 23 with its first two episodes, followed by one episode each Wednesday through Nov 4.
