Jackie Cooper
Bruce Scott
Vondell Darr
Mary Scanlon
Edwin Stanley
Pat Scanlon
William Ruhl
G- Man Hal Marvin
Bill Cody Jr.
'Skeets' Scanlon
David Durand
'Rip' Dawson
Ralph Dunn
Henchman Pug O'Toole
Frank Coghlan Jr.
Ken - a Boy Scout
Ivan Miller
Turk Mortensen
Victor Adams
Henchman Hurst
Sidney Miller
Hermie - a Boy Scout
Dick Botiller
Leeka
George Regas
Lokola -Indian Tribe High Priest
Jack Mulhall
Scoutmaster Hale [Ch. 1]
Edwin Brian
Boy Scout
Sam Bernard
G-Man Blaine [Chs. 11-12]
Emmett Vogan
G-Man Ed Billings [Chs. 1-2]
Lee Phelps
G-Man Jim Carson [Chs. 11-12]
Ed Brady
Henchman Slade
Bill Cartledge
Rip's Gang Member
Iron Eyes Cody
Indian
Jim Hussey
Boy Scout
Lucien Maxell
Indian Boy
David McKim
Boy Scout
Eddie Parker
Joe, Message Rider
Franklin D. Roosevelt
Franklin D. Roosevelt (archive footage)
Tom Steele
Runaway Surrey Driver
Max Wagner
Joe - Truck Driver-Henchman