The series ended on a cliffhanger.
The actor said there are no plans for more episodes but that the Christmas special cliffhanger could be resolved.
The actor said he wasn't aware of any plans for another episode following on from the 2019 Christmas special.
Following the announcement that BBC Three will be given the reboot in 2022, let's take a trip down memory lane at some of their best shows.
Ruth Jones and Liz Carr will also appear in the upcoming series.
The show's co-creator admitted she and James Corden had not been working on new episodes of the show.
Ruth Jones has revealed she will write with James Corden again, but said it 'may not be Gavin & Stacey'.
'Gavin and Stacey' actor Mathew Horne has said rumours of a new Christmas special this year are 'ridiculous' as he addressed the future of the much-loved comedy.
Ruth Jones warns she'll tell people to 'back off' if they approach her around Barry
The news is bound to disappoint millions of fans.
The actor - who plays Uncle Bryn on the show - was surprised when co-creators Ruth Jones and James Corden came to him with the Xmas special.
Pair release joint statement after official viewing figures reveal Christmas special episode was most viewed BBC show since records began
Only World Cup matches, Olympic ceremonies and 'The X Factor' beat it.
The star says the Christmas special would never have made it to air without the best scene he and Ruth Jones have ever written.
The sitcom's creator knows you can't please everyone.
The actress took her niece on a reconnaissance mission to Barry in south Wales to see if they would be able to film in 'Stacey's house' again.
The sitcom's creator could have another series in her yet.
The return of Gavin And Stacey will air on Christmas Day.
The BBC hid the trailer at the end of the first Gavin & Stacey Christmas special on the BBC iPlayer.
The sitcom star and chat show host said he and Ruth Jones wrote the new episode over Facetime.
Fans who went to watch filming on location in South Wales were treated to free ice creams
The Britcom special will reach our screens this Christmas
Much-loved sitcom will return for a one-hour special on Christmas Day
Larry Lamb admitted he cried reading the script for the upcoming reunion show.
'Gavin & Stacey' is returning for a Christmas special, but there are a tonne of threads from the original show for it to pick up.