Star Trek: 10 Things You Didn't Know About Kira Nerys
10. She Was Originally Labelled A Turncoat
It's fairly well-known that the character of Kira Nerys was intended to be Ro Laren, with Michelle Forbes returning for the role. Forbes herself passed on committing to a television show, which gave the producers an opportunity to design an entirely new character, with Nana Visitor taking the role.
Her initial description was that she was a belligerent officer, highly critical of the new government that had taken control on Bajor. While that element of the character was retained, one that was quietly dropped was that her former terrorist compatriots saw her as a turncoat.
While it's touched on in the series, her initial brief would have seen her helping round up her former cellmates, at least those who refused to fall in-line with the provisional government. There was a bit of a shift in how this was presented - Kira was always hot-headed in the beginning, but she was also fiercely loyal to her fellow Bajorans.
One early example of conflict was in the first season episode Progress, which saw Kira tasked with removing an elderly man from his home. It was the first of many heartbreaking moments for her.