‘The Split’ director Dee Koppang O'Leary has teased her husband Dermot O'Leary's cameo in the BBC show.
Dee - who helms the divorce drama, which has returned for its third and final instalment - admitted the 'This Morning' host will make a "blink-and-you'll-miss-it" appearance in the programme.
Speaking to Radio Times magazine, the 43-year-old star said: "My husband pops up in a very, very funny blink-and-you'll-miss-it cameo playing himself in it as well, which is good. Playing a breakfast TV presenter.
"It was just a very organic thing. It really is blink-and-you'll-miss-it – it's a tiny, tiny moment.
"There's a lovely moment in the script where it says one of the characters is being interviewed by a TV presenter and I was like, 'Well, I might be able to help with that'. So yeah, he came down to set for the day, which was very fun."
But the show's celebrity cameos don’t stop there as fans can look forward to a few more guest appearances from familiar faces.
She added: "There's some really fun cameos. We've got Lindsay Duncan and Jemima Rooper, and we've got Lily Cole and Tom Rhys Harries."
In June, it was announced Dee - who has worked on 'Bridgerton' and 'The Crown' - had joined 'The Split' as lead director.
The series features Nicola Walker, Annabel Scholey and Fiona Button, who play the Defoe sisters, and Deborah Findlay, who portrays their formidable mother Ruth.
Creator Abi Morgan said at the time: "For every writer there are characters that stay with them, long after a show is over, Hannah Defoe and her family are just that, and it’s been a welcome balm after a difficult year globally, to reunite this brilliant cast.
"'The Split' has been building to this exhilarating final act for the Defoes as they navigate their way through the marital make up and break up, both personally and professionally, at Noble, Hale and Defoe.
"They say you can’t have new beginnings without endings, and I want to say a big thank you to the BBC and AMC, and the fans who have kept running by our side."