The star-studded lineup for "Oppenheimer" is pretty much any director's dream assembly. The long list of cast members includes Murphy as Oppenheimer; Blunt as the physicist's wife, Katherine "Kitty" Oppenheimer; Pugh as Jean Tatlock, a physician who was a former lover of Oppenheimer; Benny Safdie as Edward Teller, dubbed "the father of the hydrogen bomb"; Downey Jr. as Lewis Strauss; and Damon as Lt. Gen. Leslie Groves.
The stacked cast also includes Rami Malek, Josh Hartnett, Olivia Thirlby, Matthew Modine, Dylan Arnold, Kenneth Branagh, Gary Oldman, Tony Goldwyn, Alex Wolff, Matthias Schweighöfer, David Rysdahl, Josh Peck, Jason Clarke, David Dastmalchian, Dane DeHaan, and Jack Quaid.