If you sacrifice No Rest for the Wicked on the same turn you cast it, all creature cards that were put into your graveyard from the battlefield that turn will be returned to your hand, including any that were put into your graveyard before No Rest for the Wicked entered the battlefield.

It doesn’t matter who controlled the creature cards when they were on the battlefield. As long as they were put into your graveyard, you get to put them into your hand.