Charles Spencer Belden (April 21, 1904 – November 3, 1954) was an American screenwriter and journalist, known for writing screenplays to several Charlie Chan films in the 1930s, notably Charlie Chan at the Opera (1936). His 1932 short story "The Wax Works" served as the basis for the 1933 film Mystery of the Wax Museum. He was married to stage actress Beth Milton in the early 1930s and to actress Joan Marsh who had starred in Charlie Chan on Broadway (1937), from 1938 to 1943. He was born in 1904 in Montclair, New Jersey and died November 3, 1954 in Motion Picture Country Hospital at the age of 50.
- Koszarski, Richard (1979). Mystery of the Wax Museum. Wisconsin Center for Film and Theater Research. pp. 12–. ISBN 978-0-299-07674-0.
- "Ex-Follies Beauty Divorce Applicant". Bakersfield Californian. Associated Press. December 7, 1933. p. 10.
- Lynn Kear; James King (2009). Evelyn Brent: The Life and Films of Hollywood's Lady Crook. McFarland. pp. 212–. ISBN 978-0-7864-5468-6.