'Oppenheimer' Cast and Character Guide: Who Stars in Christopher Nolan’s Film

Director Christopher Nolan (The Dark Knight trilogy, Tenet) is one of the most beloved filmmakers working today, meaning whenever he’s set to release a film, we have to talk about it. His latest venture takes us to 1939 and is a biopic about J. Robert Oppenheimer, the inventor of the atomic bomb. The film is based on the book American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer by Kai Bird and Martin J. Sherwin. Oppenheimer features one of the most impressive casts in recent memory. Here’s everything you need to know about the cast of Christopher Nolan’s Oppenheimer. Cillian Murphy as J. Robert Oppenheimer Cillian Murphy (Peaky Blinders, A Quiet Place Part II) leads the film as the titular character, J. Robert Oppenheimer. Known as the father of the atomic bomb, Oppenheimer was a central player in the Manhattan Project during World War II. Cillian Murphy has been a mainstay in almost all of Nolan’s films, most notably as Jonathan Crane, aka the Scarecrow in The Dark Kn...