Jackie Cooper
Bruce Scott
Edwin Stanley
Pat Scanlon
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
Jason Robards Sr.
Doc
Sidney Miller
Hermie - a Boy Scout
Dick Botiller
Leeka
George Regas
Lokola -Indian Tribe High Priest
Jack Mulhall
Scoutmaster Hale [Ch. 1]
Emmett Vogan
G-Man Ed Billings [Chs. 1-2]
Lee Phelps
G-Man Jim Carson [Chs. 11-12]
Ed Brady
Henchman Slade
Iron Eyes Cody
Indian
Eddie Parker
Joe, Message Rider
Franklin D. Roosevelt
Franklin D. Roosevelt (archive footage)