Christopher Nolan’s next big project Oppenheimer, starring Cillian Murphy and an extensively large A-list cast, continues to add even more cast members. Deadline has reported that James D’Arcy and Michael Angarano have officially signed onto the project.

Oppenheimer is based upon the book by Kai Bird and Martin J. Sherwin, American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer, and will star Murphy in the titular role. The film will tell the story of Oppenheimer, The Manhattan Project, and the invention of the atomic bomb. Nolan penned the script and will produce alongside Emma Thomas and Charles Roven.

James D’Arcy has appeared in Avengers: Endgame, The Snowman, Jupiter Ascending, along with working with Nolan previously in Dunkirk. He has also starred in TV series like The Hot Zone: Anthrax and Agent Carter. Angarano has starred in the hit series This Is Us, which earned him an Emmy nomination, along with HBO Max’s Minx, Peacock’s Angelyne, and A Teacher.

The rest of the star-studded cast comprises Emily Blunt, Matt Damon, Robert Downey Jr., Florence Pugh, Rami Malek, Benny Safdie, Josh Hartnett, Dane DeHaan, Matthew Modine, Dylan Arnold, David Dastmalchian, Olli Haaskivi, and Jason Clarke. Most recently, Jack Quaid joined the cast along with Kenneth Branagh, Alden Ehrenreich, and David Krumholtz last week. Details for some of the roles of this star-studded ensemble remain unconfirmed.

Oppenheimer is filming now in New Mexico and released in theaters on July 21, 2023.