
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.

Charles Foster Kane III
Citizen Kane

Sarge (uncredited)
Michael O'Halloran

Jimmie (uncredited)
Cash and Carry

Smallest G-Men Club Member
Hunted Men

Little Freddy Worthington
What Becomes of the Children?

Thomas "Tommy" M. Foster
No Place to Go

Chester Platt
Boy Trouble

Student Fighting with Mickey
Eyes of the Underworld

Martin Van Buren Aldrich (uncredited)
All That Money Can Buy

Boy Asking for Rabbit (uncredited)
My Dear Miss Aldrich

Hit-and-Run Victim (uncredited)
We Who Are About to Die

Billie - Boy on Radio Program
Love Is on the Air

Boy in Tree (uncredited)
On Borrowed Time

Orphan Boy (uncredited)
You Can't Buy Luck

Boy Chiseler
Fixer Dugan

Little Boy (uncredited)
Missing Witnesses

Bobby Mattison
Parole Fixer

Boy with Lollipop (uncredited)
The Great O'Malley

Joey Joyce
Renegade Trail

Willie Lincoln (uncredited)
Abe Lincoln in Illinois

Peter
Emergency Squad

Boy in Sunday School (uncredited)
Sergeant York

Young Boy (uncredited)
Man Hunt

Willy
Half a Sinner

Billy Welles
Three Faces West

School boy
And Sudden Death

Freddie Jackson (uncredited)
Little Orvie

Young Grat
Bad Men of Missouri

Sonny the Kid in Hospital (uncredited)
Men in Fright

Younger Son
The Day of Rest

Billy
Sudden Money

Monk (uncredited)
Penrod's Double Trouble

Newsboy
Queen of the Mob

Boy (uncredited)
One Foot in Heaven

Boy
Hunted Men

Boy Hiding from Policeman (uncredited)
When Tomorrow Comes
Known For
Acting
Known Credits
36
Gender
Male
Birthday
1928-01-10
Place of Birth
New York City, New York, USA
Also Known As
Moyer MacClaren Bupp