- Edward Norris
- Bob Elliot
- Eddie Quillan
- Chuck Kelly
- Douglass Dumbrille
- Lang
- Lois Collier
- Pamela Courtney
- Ruth Roman
- Lothel
- Tala Birell
- Dr. Elise Bork
- Clarence Muse
- Kyba
- Cy Kendall
- Tambosa Tim
- Clinton Rosemond
- Godac
- Lumsden Hare
- Mr. 'X'
- Lester Matthews
- Commissioner Braham Chatterton
- Napoleon Simpson
- Maati
- Budd Buster
- Jungle Jack
- Emmett Smith
- Noma
- Jim Basquette
- Orbon
- James Adamson
- Messenger
- Louis Adlon
- Weber
- Ted Billings
- Barfly
- Oliver Blake
- Capt. Drake
- Walter Bonn
- Denker
- George Chester
- Native
- Herbert Clifton
- 1st London Detective
- Edmund Cobb
- Johann - alias Jack
- Leslie V. Conant
- Pilot
- Harry Cording
- Husky Deck Sailor
- Jack Curtis
- Bartender
- Cyril Delevanti
- Rogers
- George Eldredge
- Muller
- Tony Ellis
- Co-Pilot
- Joel Fluellen
- Native
- Art Foster
- Constable
- Arno Frey
- German Officer
- Wesley Gale
- Native
- Gene Garrick
- Spy
- John George
- Barfly
- Wilton Graff
- Courier
- Bobbie Hale
- Barfly
- Sherry Hall
- Henchman in Alley
- Peter Helmers
- Heinkel
- Ivo Henderson
- Constable
- Boyd Irwin
- Alan Courtney
- Colin Kenny
- Constable
- Charles Knight
- Constable
- Perc Launders
- Silver Star Crewman
- George Leigh
- Undersecretary
- Robert Lewis
- Native
- John Meredith
- Courier from London
- John Merton
- Mine Henchman-Guard
- Lee Phelps
- Mine Henchman-Guard
- Tom Pilkington
- Courier
- George Reed
- Tonga
- Eric Snowden
- 2nd London Detective
- Robert R. Stephenson
- Krantz
- Fred 'Snowflake' Toones
- Native
- Sid Troy
- Crewman
- Ray Turner
- Bondo Prisoner
- Leon Warwick
- Guard
- Leigh Whipper
- Native
- Crane Whitley
- Henchman in Alley
- Al Woods
- Bilge
- William Yetter Sr.
- German Officer
