- Lee Powell
- Lieutenant Tom Grayson
- Bruce Bennett
- Lieutenant Frank Corby
- Eleanor Stewart
- Janet Warfield
- Montagu Love
- General White
- Hugh Sothern
- Ben Warfield
- Sam Flint
- Colonel Grayson
- Perry Ivins
- Crenshaw
- Forrest Taylor
- Benson
- John Picorri
- Professor Gould
- Carleton Young
- Crewman
- John Davidson
- Lin Wing
- Henry Otho
- Sam Hedges
- Reed Howes
- Parker
- Tom London
- Wilson
- Edmund Cobb
- Ellis
- Alan Gregg
- Marco
- Allen Mathews
- Todd
- Edward Argyle
- Watchman
- Frank Baker
- General Snell
- Lee Baker
- Dirigible Deck Crewman
- James Carlisle
- Board Member
- Thomas Carr
- Dock Shipping Clerk
- Ed Cassidy
- Captain
- Howard Chase
- Capt. Cuttle
- Ken Cooper
- Jacobs' Pal
- Russell Custer
- Dirigible Crewman
- Jack Daley
- Police Inspector
- Joe De La Cruz
- Native
- George DeNormand
- Marine Guard
- Art Dillard
- Thug with Grenades
- Lester Dorr
- The Lightning
- Benson Fong
- Gehorda Outlaw
- Eddie Foster
- Pete
- Jerry Frank
- Thug with Wrench
- Duke Green
- Henchman
- Sherry Hall
- Mr. Brown
- Ray Hanson
- Marine Smith
- Jack Hendricks
- Marine
- John Hiestand
- Newscaster
- Jack Ingram
- Dirigible Radioman
- Bruce Lane
- Body-Finding Marine Corporal
- Theodore Lorch
- 'Wing' Henchman
- George Magrill
- Jamison
- Millard McGowan
- Thug
- John Merton
- Thompson
- Monte Montague
- Jacobs
- Jack O'Shea
- Henchman
- Stanley Price
- The Lightning
- Buddy Roosevelt
- Lieutenant
- Francis Sayles
- Renault
- Fred Schaefer
- Phony Ambulance Driver
- William Stahl
- Corp. Lake
- Edwin Stanley
- The Lightning
- Tom Steele
- Sentry at Warfield Home
- Larry Steers
- King
- Harry Strang
- Sgt. Bennett
- Al Taylor
- Bearded Sailor
- Dirk Thane
- Tall Thug
- Lloyd Whitlock
- Dirigible Captain
- Robert J. Wilke
- Marine in Shanghai
- Victor Wong
- Mikichan
- Duke York
- Sam
