He turned his back on the limelight after falling out with Gavin & Stacey co-star James Corden.
And even during his visit to Glastonbury, actor Mathew Horne tried to go under the radar.
But fans spotted the star, who plays Gavin Shipman in the popular comedy, as he had breakfast with his wife Celina Bassili on Saturday morning.
Dressed in a black sweatshirt, shorts and a matching baseball cap, he and Celina were overheard discussing what bands they were going to see.
One onlooker told MailOnline: ‘Mat has grown his hair so he was almost unrecognisable but then you hear his voice and there was no doubt it was him.
‘For his level of fame there was no fanfare at all, not like some of the other big stars. He was sitting quietly with his wife taking in the sunshine.
After turning his back on the limelight following a fallout with James Corden, Mat Horne once again tried to under the radar at Glastonbury this week
The actor was spotted by festival-goers at Glastonbury enjoying a spot of breakfast with his wife Celina Bassili
One onlooker told MailOnline: ‘Mat has grown his hair so he was almost unrecognisable but then you hear his voice and there was no doubt it was him’
‘It was only a few months ago since he was the star of the Gavin and Stacey Christmas special which was watched by 18 million people.
‘lt was so refreshing to see.’
Celina posted a series of photos and videos on her Instagram site after she and Mat, 46, arrived at Worthy Farm, including a sweet snap of the pair together.
Mat previously attended Glastonbury in 2009.
Mat and Celina married in a secret wedding held at a 1930s mansion in the bride’s native Norway in 2021 after they began dating in 2019.
The actor is said to have welcomed the child with set designer Bassili shortly after their wedding in September 2021.
Mat was previously engaged to Evelyn Hoskins, star of BBC medical drama Casualty.
Mat and Corden fell out in the late noughties following the success of BBC One comedy.
Celina posted a series of photos and videos on her Instagram site after she and Mat, 46, arrived at Worthy Farm, including a sweet snap of the pair together
The couple joined the other revellers at the iconic festival
Mat and Celina married in a secret wedding held at a 1930s mansion in the bride’s native Norway in 2021 after they began dating in 2019 (pictured in March )
The actor is said to have welcomed the child with set designer Bassili shortly after their wedding in September 2021 (pictured 2024)
While Corden went on to be a star of Broadway and the West End after his appearance in theatre show One Man, Two Guv’nors, and latterly Hollywood where he hosted The Late Late Show on US network CBS, Mat lived a much quieter life.
Mat plays Gavin, the son of Pam and Mick Shipman in Gavin and Stacey, which hit our screens in 2007.
Close friends, among them Gavin & Stacey co-stars James Corden and Joanna Page, are understood to be aware of the birth – which was not made public by the couple at the time.
A source told The Sun: ‘Mathew is a brilliant dad and he and Celina love being parents.
‘Celina’s brother has a son who is a similar age and they loved spending time together.
‘Mathew also kept the news quiet because he prefers to live his life out of the spotlight, even though he’s a household name thanks to Gavin & Stacey.
‘All his Gavin & Stacey co-stars know about him being a dad, including James Corden and Joanna Page’.
The actor was first seen kissing the set designer during a night out in Wales two years earlier, while they were busy filming the last Gavin & Stacey Christmas special.
Bassili, who graduated from University Of Arts London with a first class degree in set design, lists the Gavin & Stacey special on her online CV.
With the kiss, he appeared to confirm his relationship was over with Casualty actress Evelyn Hoskins, who he proposed to in October.
A spokesperson later told MailOnline: ‘Mathew and Evelyn separated amicably in October 2018.’
The actor shot to stardom as part of the hit show Gavin & Stacey, in which he played Gavin Shipman (Pictured left with the cast of the show)
