Unknown

Ship's Captain

Judge with Stopwatch

Dr. Jay Milton

Unknown

Rancher

Curtis Atherton

Edwards

Police Capt. Jacoby (uncredited)

H. T. Stewart

Unknown

Captain Briskin

Interrogator (uncredited)

Howard Wycoff

Dr. David Walters

Dr. Walter Manning

Harry Kellem

Gen. Parker

American General

Jordan McClure

Dave Moody

Dave Moody

Doctor McPheeters

Unknown

Mr. Robinson

Thornton

Unknown

Police Officer

Director

Henderson

Sgt. Wilkerson (uncredited)

Unknown

Joe Walters

Commander

Lt. Boutaric

Unknown

Willie Long

Unknown

Warden Hubbard

Brookson

Boyle

Paul Marron

Unknown

Unknown

Lieutenant Billings

Unknown

Herm Villiers

Unknown

Webb White

Sheriff Pete Link

Reverend Edward Snow

Sheriff of Largo

Gen. Tyler (uncredited)

Unknown

Deputy Sheriff

Fred Swan

Cmdr. Jerome Burke

Fenton Hardy

Phil Jackman

Det. Sgt. Sommers

Ed Galt

Fenton Hardy

Captain Grifton (uncredited)

1st Officer

Marshal Jim Feathergill

Maj. Knowles

Thomas

Gardener

Detective (uncredited)

Reporter (uncredited)

Second Policeman in Bank (uncredited)

Police Officer

Rev. Bethany (uncredited)

First FBI Man (uncredited)

Unknown

Detective

Capt. Jordan

Unknown

Colonel

Dr. Hughes

Cop (uncredited)

Newspaperman (uncredited)

Major Horton

Joe - Director

Captain (uncredited)

Unknown

Outlaw Leader

Eldredge

Maj. J.A. White (uncredited)

Police Broadcaster (uncredited)

Russell (uncredited)

Constable (uncredited)

Quintus

Chief Agent Gunby

Cmdr. Willis - Chaplain (uncredited)

Chaplain Willis (uncredited)

Unknown

Detective

Reporter (uncredited)

Ambulance Doctor (Uncredited)

Reporter (uncredited)

Code Expert (uncredited)

Medic (uncredited)