Moyer MacClaren Bupp (January 10, 1928 – November 1, 2007) professionally known as Sonny Bupp, was an American child film actor and businessman.

Bupp was the last surviving credited member of the Citizen Kane cast at his death.

[1] He also appeared in the 1937 Three Stooges' Cash and Carry, as well as such films as Love Is on the Air (Ronald Reagan's first film), The Renegade Trail, Annie Oakley (with Barbara Stanwyck), Kid Millions, Angels With Dirty Faces, The Devil and Daniel Webster and Tennessee Johnson.

He served in the U.S. Army during the Korean War and, after his film career ended, became an auto industry executive.

This article about a United States film actor born in the 1920s is a stub.