Wilfort said raising more than £31,000 had “surpassed everyone’s expectations” and “overwhelmed all of us that were part of it”.
“It just goes to show how popular the show has been,” he said.
The final episode of Gavin and Stacey saw Smithy and Nessa finally get married.
Wilfort described the Christmas Day episode as “a really great finish to the story”.
“We all knew the script was brilliant, but you never can tell until the whole thing comes together what the reaction is going to be.
“But it seems both press and public have just completely loved it, and it’s so satisfying for all of us,” he said. “I just feel so, so lucky to be part of something that brings joy to people.”
“It feels a bit like coming back to the real world now,” Wilfort added.
