The new film The Catcher Was A Spy is based on the life of Moe Berg, a former professional baseball player who became a spy for the U.S. government. His story is not unique. Berg is just one of several celebrities who joined the espionage game to help his country, particularly during World War II.
Many famous spies took risks to collect enemy intelligence. Some of these men and women were spies before they became stars, while others smuggled intel, tracked Nazi sympathizers, and monitored anarchists in the prime of their careers. People like Berg were ideally suited to uncover secret information. Some of them even had effective methods for gathering intelligence.
Disclaimer: The celebrities mentioned in this article were chosen based on research from multiple sources, but it is very well possible that we will never know the real truth about what happened.