Cast
R.G. Armstrong
Oramel Howland
Stan Jones
Seneca Howland
Roy Barcroft
Jim Baker
Ray Walker
McSpadden (uncredited)
John Beal
Maj. John Wesley Powell
James Drury
Walter Powell
David Frankham
Frank Goodman
Jack Big Head
Ashtishkel
Pat Hogan
Indian chief
Ben Johnson
George Bradley
L.Q. Jones
Billy Hawkins
David Stollery
Andrew 'Andy' Hall
Brian Keith
William Dunn