Cast
- William Boyd as Hopalong Cassidy
- Andy Clyde as California Carlson
- Rand Brooks as Lucky Jenkins
- Elaine Riley as Anne Larson
- Cliff Clark as Waite
- Joel Friedkin as Prof. Larson
- Kenneth MacDonald as Bentley
- Don Haggerty as Deal Marden
- George Eldredge as Radley
- Richard Alexander as Sam
Crew
- George Archainbaud · Director
- Harrison Jacobs · Writer
- William Conselman Jr. · Writer
- Doris Schroeder · Writer
- Clarence E. Mulford · Writer
- Lewis J. Rachmil · Producer
- Raoul Kraushaar · Composer
- Mack Stengler · Cinematographer