Cooper Joseph Koch (/ˈkɑːtʃ/; born July 16, 1996) is an American actor. He is best known for his portrayal of Erik Menendez in the biographical crime drama series Monsters: The Lyle and Erik Menendez Story (2024), which earned him a nomination for a Golden Globe Award. He previously starred in the slasher film They/Them and the body horror film Swallowed (both 2022).