Gavin & Stacey claimed a special episode was possible, citing it as a Hallowe'en or Bonfire Night special rather than a Christmas special, stating like he'd "love to see Gavin and Smithy go trick or treating". Speaking in October 2013, Mathew Horne said he would love to star in a fourth series, but admitted it would be a "risk" to do another series in case it didn't live up to expectations. James Corden said in November 2013 that he would love to work with Ruth Jones again but he didn't know if it would be to make more Gavin and Stacey or something
Gavin & Stacey surnames of known English serial killers for some of the main characters – Shipman, West and Sutcliffe — was deliberate. In 2009 Ruth Jones commented: "I suppose we were hoping that people wouldn't realise and then when it does come to light, it's even more delicious..." Although the production team received requests, the show declined to use celebrity guests for cameo roles in the 2008 Christmas special. However, both Noel Sullivan and John Prescott made brief cameo appearances at the end of the final series. Both figures had formed the basis of long-running jokes throughout the series. Nessa occasionally refers