|The Last Frontier|
|Directed by||Spencer Gordon Bennet|
|Written by||Karl R. Coolidge|
Robert F. Hill
George H. Plympton
Courtney Ryley Cooper (novel)
|Produced by||Fred McConnell|
|Starring||Lon Chaney, Jr.|
|Edited by||Tom Malloy|
|Distributed by||RKO Radio Pictures|
|12 chapters (213 minutes)|
The outlaw "Tiger" Morris attempts to drive settlers off their land in order to acquire the local gold deposits. A crusading newspaper editor, Tom Kirby, becomes the masked vigilante, The Black Ghost, to stop him.
- Lon Chaney, Jr. as Tom Kirby, the editor of the local newspaper and the masked vigilante The Black Ghost
- Dorothy Gulliver as Betty Halliday
- Ralph Bushman as Jeff Maitland
- William Desmond as General George Custer
- Joe Bonomo as Joe, one of Morris' henchman. Listed as "Kit Gordon" in the credits.
- Pete Morrison as Hank, one of Morris' henchman
- LeRoy Mason as Buck, Morris' spearpoint heavy (chief henchman)
- Yakima Canutt as Wild Bill Hickok
- Mary Jo Desmond as Aggie Kirby
- Slim Cole as Uncle Happy
- Richard Neill as Leige "Tiger" Morris, outlaw
- Judith Barrie as Rose Maitland
- Claude Payton as Colonel Halliday
- Ben Corbett as Bad Ben, one of Morris' henchman
- Frank Lackteen as Chief Pawnee Blood
- Fritzi Fern as Mariah
The Last Frontier was RKO's only serial.
- The Black Ghost Rides
- The Thundering Herd
- The Black Ghost Strikes
- The Fatal Shot
- Clutching Sands
- The Terror Trail
- Facing Death
- Thundering Doom
- The Life Line
- Driving Danger
- The Black Ghost's Last Ride
- Cooper, Courtney Ryley (1923). "The Last Frontier".
- Harmon, Jim; Donald F. Glut (1973). "14. The Villains "All Bad, All Mad"". The Great Movie Serials: Their Sound and Fury. Routledge. p. 360. ISBN 978-0-7130-0097-9.
- Cline, William C. (1984). "Filmography". In the Nick of Time. McFarland & Company, Inc. pp. 206–207. ISBN 0-7864-0471-X.