The actress expressed gratitude for the BBC sitcom's popularity, as she now feels free to exhibit her accent unlike when she was at drama school.
"I love it that the Welsh moment was with Gavin & Stacey," she told The Guardian. "Now when I go up for jobs, they want me to be Welsh. It's really nice.
"[Drama school] was really hard. I had just turned 18 and I was desperately homesick. The teachers wanted to strip me of everything that was Welsh and sweet. I felt a bit battered."
Page is set to return to TV screens this week in The Syndicate, a five-part BBC drama from Kay Mellor focusing on a group of supermarket workers who win the lottery.
"This time my part isn't sweet at all," she revealed. "She is really mysterious and she has left a secret behind her in Wales. She does not want to be found."
Page said last year that she would happily star in a Gavin & Stacey special.
> David Cameron meets Joanna Page: 'We need more Gavin & Stacey'