- Gender: Male
- Birthday: 1915-01-26
- Day of Death: 1970-03-06 ( 55 years old )
- Place of Birth: New York City, New York, USA
- Also Known As: DeWolf Hopper / DeWolf Hopper Jr. / Bill Hopper / De Wolf Hopper / William Dewolf Hopper
William Hopper was born on January 26, 1915 in New York City, New York, USA as William DeWolf Hopper Jr. He was an actor, known for Perry Mason (1957), Rebel Without a Cause (1955) and 20 Million Miles to Earth (1957). He was married to Jane Gilbert and Jeanette J. Hopper. He died on March 6, 1970 in Palm Springs, California, USA.