Disguising himself as a milquetoast Easterner who writes Western novels, Hoppy enrolls in a dude ranch in order to unmask the murderer of the owner's husband.
William Boyd
Hopalong Cassidy
George 'Gabby' Hayes
Windy Halliday
Russell Hayden
Lucky Jenkins
Charlotte Wynters
Ann Marsh
Jan Clayton
Dorrie Marsh
Robert Fiske
Monte Keller
Kenneth Harlan
John Marsh
Anthony Nace
Steve Dorman
