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

Michael Kanin

Screenplay

George Bricker

Story

Jack Hively

Director

Nicholas Musuraca

Director of Photography