The star says the Christmas special would never have made it to air without the best scene he and Ruth Jones have ever written.
The sitcom star said he 'used my public platform and passion for politics in an incorrect way'.
The 'Adore You' singer has been urged to keep quiet by the co-writer of the beloved comedy series.
The actress took her niece on a reconnaissance mission to Barry in south Wales to see if they would be able to film in 'Stacey's house' again.
The sitcom star and chat show host said he and Ruth Jones wrote the new episode over Facetime.