The final Christmas Day return date for the series was announced in May.
The show debuted in 2007 and ran until 2010 before making a comeback for a special in 2019.
Before co-creator Ruth Jones and Corden officially announced the reunion, she had previously refuted return rumors that had initially surfaced in US media.
The 45-year-old announced he was “off to Barry Island” after finishing a theatrical engagement at London’s Old Vic.
He announced that he would be spending “the next seven weeks” at the coastal resort in the Vale of Glamorgan.
Gavin & Stacey, which was primarily shot in South Wales, centers on the romance between the title characters.
As Smithy and Nessa, their respective best pals, Corden and Jones play the lead roles.
As the pair’s quirky family, Rob Brydon, Melanie Walters, Alison Steadman, and Larry Lamb also make appearances.
The last special left fans wondering how Smithy would react to Nessa’s proposal, leaving them hanging.
Approximately 18 million viewers saw the show’s 2019 return.
