Grace is the deuteragonist of the 2023 film Mission: Impossible - Dead Reckoning Part One and will appear in the upcoming sequel Mission: Impossible - Dead Reckoning Part Two. She is initially a pickpocket hired by a mysterious individual to steal Ethan Hunt's half of the key to the secret of the Entity. However, over the span of her mission, Grace starts to rethink her choices and choose a side upon being threatened by Gabriel.
Grace spends the first half of the movie trying to stay one step ahead of everyone on her tail, including Ethan (who she leaves handcuffed to a car in an active train tunnel at one point). During the climax, she's given the opportunity while in disguise as Alanna/the White Widow to net a $100 million payday for trading the completed key to Kittridge onboard the train. After reflecting on Ethan's advice to her from earlier in the film, she rejects the money, showing that she's moved past her lifestyle of being a burglar and is committed to the team's more altruistic goals.