Robert Livingston as Don Loring / The Eagle

Kay Hughes as Doris Colton

Guinn 'Big Boy' Williams as Salvation

Raymond Hatton as Whipsaw

Fred Kohler as General Jason Burr

Robert Warwick as Count Ivan Raspinoff

William Farnum as Father José

Bob Kortman as Boris Petroff

John Merton as Rance Talbot, Burr Henchman

Lloyd Ingraham as John Colton

William Desmond as Anderson, Vigilante Member

Yakima Canutt as Henchman Barsam [Ch. 1]

Tracy Layne as Clem Peters, Vigilante Spy for Burr [Chs. 2-6]

Bud Pope as Cossack Ivan

Steve Clemente as Pedro, Burr's Spanish Henchman [Chs. 1-6]

Bud Osborne as Harris - Henchman