Bringing Gavin and Stacey back is a "great move" by co-creator James Corden and will "boost" his profile, a PR commentator has suggested ahead of it being released. The BBC sitcom returns for its "finale" on Christmas Day , after an almost five year absence following the last festive special in 2019. The upcoming episode was announced by co-creators James, 46, and Ruth Jones , 58, back in May. Fans have been waiting for an update on the characters following a cliffhanger. Vanessa 'Nessa'