Billy 'Ace' Holden
Eddie Holden
The Baron
Jerry Markham
Agent Don Ames
'Bolts' Larson
'Stick' Munsey
'Greaseball' Plunkett
Jack
Double Face Gordon
Araka
Beal
Comora (as Edward Foster)
Augar
Monk
Dick Parsons
Grace (uncredited)
Pedestrian (uncredited)
Whitey (uncredited)
Vendor (uncredited)
Sergeant (uncredited)
Chemist (uncredited)
Col. Mitchell (uncredited)
Japanese Clerk (uncredited)
Vamalka (uncredited)
Ito (uncredited)
Parts Customer (uncredited)
Construction Site Watchman (uncredited)
Scientist (uncredited)
Berry Evans (uncredited)
Policeman (uncredited)
Soldier (uncredited)
Soldier-Driver (uncredited)
Newsboy (uncredited)
Gobi (uncredited)
Customer (uncredited)
Dogara (uncredited)
Alien Agent (uncredited)
Train Conductor (uncredited)
Army Lieutenant (uncredited)
Citizen (uncredited)
Air Race Official (uncredited)
Instructor (uncredited)
Senator (uncredited)
Street Brawler (uncredited)
Jed Holden (uncredited)