Corden and his co-creator Ruth Jones — or Smithy and Nessa to some — were emotional waving goodbye to their enduringly popular sitcom, which aired its final episode on Dec. 25.

Gavin and Stacey returned for one final time this festive season with James Corden and Ruth Jones penning the script for the hotly-anticipated special in a very unusual way

Gavin and Stacey co-creator Ruth Jones has revealed that she noticed a 'glaring' error in the Gavin and Stacey 2019 Christmas special.

Co-creators James Corden and Ruth Jones gave away some secrets from filming the Gavin and Stacey finale at a cast and crew screening

James Corden and Ruth Jones tell Boyd Hilton what’s occurring with the epic, emotional finale of Gavin and Stacey. Read more on heatworld.

On Thursday, Corden, who watched the Gavin and Stacey finale on Christmas Day with Ruth, shared behind-the-scenes photos from the set, including one of himself and Mathew Horne, who plays Gavin, holding hands in bed together.

Gavin and Stacey stars James Corden and Ruth Jones share behind-the-scenes photos of the Christmas Day special

James Corden wanted to "trick everybody" with the plot line of Gavin and Stacey's final episode. The hit show returned to screens with a new festive special on Christmas Day, five years after the 2019 special ended on a cliffhanger that saw Nessa (Ruth Jones) get down on one knee and propose to Smithy (Corden).

The BBC can breathe easy into its festive leftovers, after all the hype, cross-promotion and marketing paid off – with the finale of long-running comedy Gavin and Stacey winning the UK's top Christmas Day audience.

It was the TV event of the year, and the 12.9 million people who waited five years for the latest episode of Gavin and Stacey were all likely to have been thinking the same thing. Would it be worth the wait?