The beloved Welsh sitcom aired its finale episode on Christmas Day on BBC, with a behind the scenes documentary now revealing why that was the final ever episode

James, who is well known for his iconic role as Smithy, spoke of a real-life friend named Gavin on BBC documentary A Fond Farewell, which aired on New Year’s Day

GAVIN and Stacey’s original name has been revealed – as James Corden admitted the show was almost ditched five years before the final episode. Fans of the BBC comedy were treated to an

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.

Sonia sort of just wasn’t in people’s minds that (it) was something that might happen.”Elsewhere in the documentary, the writers discuss sending the initial plans for the first series to BBC Three controller Stuart Murphy,

The 'Smithy' actor revealed why the much-loved BBC sit-com needed to come to an end in the new New Years Day documentary

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).

Gavin And Stacey stars James Corden and Ruth Jones have opened up about the series' final episode and why the BBC sitcom can never return after the Christmas Day special

Corden also revealed that the character of Sonia, who Smithy is seen preparing to marry at the start of the finale, was brought back because she "wasn't in people's minds". "No-one would ever say, did he choose Nessa or Sonia?