Moyer MacClaren Bupp (January 10, 1928 – November 1, 2007) professionally known as Sonny Bupp, was an American child film actor and businessman. His most notable film was Citizen Kane (1941), in which he appears as Junior, Charles Foster Kane III, the eight-year-old son of Charles Foster Kane and his first wife, Emily. Bupp was the last surviving credited member of the Citizen Kane cast at his death.
1942
as Student Fighting with Mickey
1941
as Boy (uncredited)
1941
as Martin Van Buren Aldrich (uncredited)
1941
as Boy in Sunday School (uncredited)
1941
as Young Grat
1941
as Charles Foster Kane III
1940
as Billy Welles
1940
as Newsboy
1940
as Willy
1940
as Freddie Jackson (uncredited)
1940
as Willie Lincoln (uncredited)
1940
as Bobby Mattison
1940
as Peter
1939
as Thomas "Tommy" M. Foster
1939
as Younger Son
1939
as Joey Joyce
1939
as Boy in Tree (uncredited)
1939
as Boy Chiseler
1939
as Billy
1939
as Chester Platt
1938
as Sonny the Kid in Hospital (uncredited)
1938
as Monk (uncredited)
1938
as Smallest G-Men Club Member
1938
as Boy
1937
as Little Boy (uncredited)
1937
as Billie - Boy on Radio Program
1937
as Boy Asking for Rabbit (uncredited)
1937
as Jimmie (uncredited)
1937
as Sarge (uncredited)
1937
as Orphan Boy (uncredited)
1937
as Boy with Lollipop (uncredited)
1937
as Hit-and-Run Victim (uncredited)
1936
as Little Freddy Worthington
1936
as School boy
1936
as Young Boy (uncredited)