In 2023, Sam Retford was renewing his passport with plans to return to Australia, where he would buy a ute and start an underwater film-making company.

After nine years in the acting industry, the then 24-year-old felt he was no longer the person to tell any of the stories that were coming to him.

"I'd get a piece through and I'd be like, 'so and so would be fantastic at doing that. I don't know why they're giving it to me'," the Australian-born actor tells AAP.

"Even for the jobs that I got."

So he decided to retire.

For many actors, self-doubt is a familiar feeling throughout their careers.

Take Tom Hanks, who admitted his belief people were going to discover he "was a fraud", or Kate Winslet, who was afraid of people thinking they had "cast the wrong person".

But a last-minute ca

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