Tom Cruise Ethan Hunt Hayley Atwell Grace Ving Rhames Luther Stickell Simon Pegg Benjamin 'Benji' Dunn Rebecca Ferguson Ilsa Faust Vanessa Kirby White Widow Henry Czerny Eugene Kittridge Shea Whigham Jasper Briggs Pom Klementieff Esai Morales Holt McCallany Secretary of Defense Bernstein Nick Offerman Sydney Charles Parnell Janet McTeer Hannah Waddingham Rolf Saxon William Donloe Mariela Garriga Marcin Dorociński