HOPPY SOLVES A MYSTERY!
Hoppy's ranch is threatened by rustlers. Hoppy and the gang oblige as usual.
William Boyd
Hopalong Cassidy
Andy Clyde
California Carlson
Jimmy Rogers
Don Costello
Bud Trilling
Eleanor Stewart
Diane Newhall
Francis McDonald
Bert Rogan
Forrest Taylor
Sam Newhall
Jack Rockwell
Ted Blane
John Merton
Bill
Pierce Lyden
Red
Ozie Waters
Singing Ranch Hand
Bob Burns
Tom Hanlon
