My Cast

-Returning
Tom Cruise as Ethan Hunt
Ving Rhames as Luther Stickell
Simon Pegg as Benji Dunn
Rebecca Ferguson as Ilsa Faust
Jeremy Renner as William Brandt
Sean Harris as Solomon Lane
Angela Bassett as Erica Sloane
Vanessa Kirby as Alanna Mitsopolis

-Possible
Paula Patton as Jane Carter
Jonathan Rhys Meyers as Declan

-New Cast
Dylan O'Brien as Jack Myles: An IMF rookie and new member of Hunt's team
Cillian Murphy as Roland Manderson: The main villain and current leader of the Apostles
Pierce Brosnan as Nick James: A seasoned IMF agent and ally to Hunt
Florian Munteanu as Serkis: Manderson's main henchman
Dan Stevens as Jim Phelps Jr.: Has a minor role in this film and is set up as the villain in 8. No pulling the string the wholetime bullshit, like Blofeld was, but a villain with a personal vendetta, maybe he can kill a member or an ally to Hunt's team or kidnap one of them making the stakes high.