John M. Rothman, born on June 3, 1949, in Baltimore, Maryland, is an American film, television, and theater actor. Trained at the prestigious Yale School of Drama, he began his career on stage, where he distinguished himself by winning an Obie Award. Known for his numerous character roles, he has often portrayed professionals, intellectuals, and bureaucrats in high-profile productions. His extensive filmography includes appearances in films such as *Stardust Memories* (1980), *Ghostbusters* (1984), *The Devil Wears Prada* (2006), and *Oppenheimer* (2023). On television, he had a significant role in the comedy series *One Mississippi*, playing the protagonist's stepfather. His long and prolific career was crowned by the collective success of *Oppenheimer*, for which he shared the Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture with the rest of the cast in 2024, one of the highest honors of his profession.