Sally Eilers
Irene Eaton a.k.a. Margaret Brennan
Allan Lane
George Wolf / James Huntley
Fritz Leiber
Dr. Krull
Frank M. Thomas
Col. John Shaw
Theodore von Eltz
Col. Marvin Page
Addison Richards
Senator Everett Brock
Larry J. Blake
Ben Dawson
Pierre Watkin
Colonel Wilson
Louis Jean Heydt
Gillian
Spencer Charters
Lucius Wilkins
Leona Roberts
Ella Wilkins
Charles Halton
Beldon
Alec Craig
Canby
Stanley Blystone
Detective
Harry Joe Brown Jr.
Young Boy
Hal Craig
Motorcycle Policeman
Robert Fiske
Davis
Bess Flowers
Plane Crash Spectator
Christian J. Frank
Henchman Tailing Irene
Bud Geary
Policeman
Harrison Greene
Man on Train Wanting 'Less Red Tape'
Roger Hunt
Minor Role
Mike Lally
Henchman
Harold Miller
Bar Patron at Club Dome
Howard M. Mitchell
Police Captain
Edmund Mortimer
Man with Senator in the Dome Cafe
Pat O'Malley
Intelligence Service Man
Grady Sutton
Quiet Man on Train
Richard Tucker
Colonel at Explosion
William Worthington
Senator in the Dome Cafe