- Ronald Reagan
- Private Dennis Reilley
- Mary Maguire
- Mary Lou Carruthers
- Donald Crisp
- Col. Carruthers
- Ben Hendricks Jr.
- Corporal Kane
- Max Hoffman Jr.
- Sergeant Connors
- Emmett Vogan
- Major Smythe
- Tracy Layne
- Texas
- Edmund Cobb
- Gruff's Adjutant
- Janet Shaw
- Joan Furse
- Rosella Towne
- Alice Valentine
- Joan Valerie
- Bess Merrill
- Sam McDaniel
- Henry H. Henry
- Sergeant Murphy
- Reilley's Horse
- Jimmy Adamson
- Cavalryman
- Raymond Brown
- Turner - Horse Trainer
- Hal Craig
- Cavalryman
- William B. Davidson
- Major Gruff
- John Dilson
- Rover Meat Co. Superintendent
- James D. Green
- Cavalryman
- Alec Harford
- Mr. Thornton - Clerk
- John Harron
- Carruthers' Adjudant
- Boyd Irwin
- Mr. Barker - Veterinary Inspector
- Edward Keane
- Major Biddle
- Lloyd Lane
- Cavalryman
- Wilfred Lucas
- Mule Boat Captain
- John Merton
- Cavalryman
- Fred Miller
- Quartermaster
- Walter Miller
- Mid West Dairy Superintendent
- Art Mix
- Cavalryman
- Kansas Moehring
- Cavalryman
- Edmund Mortimer
- Extra at Grand National Race
- Artie Ortego
- Cavalryman
- Henry Otho
- Cavalryman
- Robert Paige
- Lt. Duncan
- Lee Prather
- Slaughterhouse Superintendent
- John J. Richardson
- Hawkins - Mule Boat First Mate
- Jack Shannon
- Cavalryman
- Reginald Sheffield
- English Radio Commentator
- John Graham Spacey
- Mr. Baxter - Ainstree Official
- Cyril Thornton
- Mr. Smithers - Assistant Veterinary Inspector
- David Thursby
- Ainstree Track Attendant
- Carl Trick
- Horse Handler
- Chad Trower
- Cavalryman
- Tom Wilson
- Slaughterhouse Horse Handler
- Douglas Wood
- Major General Truson
- William Worthington
- Judge at Horse Show
