Ian Brennan

Ian Brennan (born April 23, 1978) is an American screenwriter, director and actor. He is known for his work on the American television shows Glee, Scream Queens, The Politician, and Dahmer – Monster: The Jeffrey Dahmer Story.

Ian Brennan is known for work in writing across film and television. New Release currently presents 23 verified screen credits connected to this profile. Selected work includes Cooties (2014), Law & Order: Criminal Intent (2001), Glee (2009), Monster: The Lizzie Borden Story (2026), Monsters: The Lyle and Erik Menendez Story (2024), DAHMER - Monster: The Jeffrey Dahmer Story (2022), Monster: The Ed Gein Story (2025), The Watcher (2022). The recorded credits span 2000 to 2026, including 10 movies and 13 TV shows. The filmography below lists available titles, release years and known roles. This profile is updated as additional verified information becomes available.