Board Thread:Show-Related Questions and Answers/@comment-3440938-20180410013556/@comment-3440938-20180416002639

Touli2 wrote: Hook and Emma were not villains. They did not commit the evil deeds they did because they were generally bad they committed them because of the dark one curse's influence on them.

Nimue hands down was the big bad, she created the dark one curse and was at fault for all the sufferring it caused. I'd say they were still villains though. It's shown that they have the capacity to be good while under the DO influence (Hook didn't turn dark until after he knew and Emma was quickly an ally to the heroes once her plan was revealed)