Cast
William Boyd
Hopalong Cassidy
Andy Clyde
California Carlson
Rand Brooks
Lucky Jenkins
Robert Emmett Keane
Professor Dixon
Jane Randolph
Jessie Dixon
Fred 'Snowflake' Toones
Speed
Steve Barclay
Bruce Landy
Harry Cording
Duke
Earle Hodgins
Sandler
Robert Bentley
Barton
William 'Wee Willie' Davis
Blackie
Forbes Murray
Colonel Jed Landy
G
Glen Gallagher
Lieutenant
Ben Corbett
Sergeant
