Sydney Hughes Greenstreet (December 27, 1879 – January 18, 1954) was a British actor. While he did not begin his career in films until the age of 61, he had a run of significant motion pictures in a Hollywood career lasting through the 1940s. He is best remembered for his Warner Bros. films with Humphrey Bogart and Peter Lorre, including The Maltese Falcon (1941), Casablanca (1942), and Passage to Marseille (1944). He portrayed Nero Wolfe on radio during 1950 and 1951. He became a United States citizen in 1925.