Amaryllis Hope Fox (born Amaryllis Damerell Thornber; September 22, 1980) is an American writer, television host, public speaker, and former United States Central Intelligence Agency (CIA) officer. She departed from her role at the CIA in 2010. Subsequently, Fox authored a memoir about her time in the CIA, entitled Life Undercover: Coming of Age in the CIA, published by Knopf Doubleday in October 2019. She is the host of the six-episode Netflix documentary series The Business of Drugs, released in July 2020.