Kenneth Harlan

as Borman

as Jedson

as Eddie Mohr

as Sammy Klein

as Territorial Commissioner

as Gas Works Policeman

as John Hampton, Indian Agent

as First Warden

as FBI Chief Colton

as Police Lt. Jim Brady

as Mark Kenyon

as Editor Keenan

as Cutler

as Fingerprint Division Lieutenant (uncredited)

as Capt. Holding [Ch. 1]

as Agent Brown

as Flight Dispatcher

as George "Mack" McColl

as Captain Sneed

as Banker Carruthers

as Tom Wilson

as Police Lt. Cosgrove

as Ship's Officer (uncredited)

as Jim Adams

as Detective Dunlap

as Jim

as Capt. Hank MacFarland

as Sheriff Hackett

as Frank Billings

as Capt. Lathrop

as Captain

as Jerry Connell (uncredited)

as Ludlow

as Charles Roberts (uncredited)

as Dalton Stull

as Blake

as Dyer, Factory Gate Guard (uncredited)

as General Terry

as John Marsh

as Bob Randall

as FBI Chief Clive Anderson [Chs. 13-15]

as Reporter at Wade's Lab

as Chas. Higgins

as Actor (uncredited)

as Miller

as Mr. John Trumbell - Juror #3

as Man at New York Airport

as Stan - Star Advertising Manager (uncredited)

as Caldwell

as Bigelow

as Mr. Remington

as Marvin Spencer

as Smooth Adair

as First Officer

as Mr. Richards

as John Harper

as McBride

as Allen Spencer

as Angry Businessman

as Varsity Football Coach

as Elmer Ross

as Laundry Owner

as Captain Breen

as Phineas T. Flagg

as Eddie

as Hotel Manager (uncredited)

as Reporter (uncredited)

as Spencer, Trader

as Roger 'Angel' Carroll

as Carter Snowden

as Major Taylor

as [scenes deleted]

as Real G-Man

as Mr. Bright

as G-Man

as Lead steward

as Stephen Martin

as 'Chick'

as Leading man

as Bowman

as Mr. Andrews

as Department of Commerce Inspector

as Police Surgeon

as Marshal Bill Graves

as Peter Milnor

as 1st Detective

as William Stevens

as Jim Davis

as Bob

as Matt Peasley

as Ward

as Jim Thorne

as Clay Conning

as Bill / Jack Mason

as Blair Thompson

as Tim Regan

as Cpl. Jim Sharkey

as Sergeant Lee

as Tom Palmer

as Peter Van Horne

as Himself

as Jack Compton

as Barry Weston

as John Doe Smith

as Chuck Lightfoot

as Colin Arnold

as Arthur Carleton

as David Lacy

as Billy Laidlaw

as (uncredited)

as Jimmie York

as Milt Mulford Jr

as Brian Kent

as Ross Cavanagh

as Hugh Kildair / Gilbert Kildair

as White Man

as David Kent

as Stephen Winthrop

as Craig Spaulding

as Rufus Asher

as Judson Forrest

as Brian Kelly

as Philip Marvin

as David Graham

as Allen Carver

as The Virginian

as Danny O'Rourke

as Martin Norries

as Duncan Van Norman

as Robert Belmar

as Wallace Foster

as Alan Randolph

as Donald Wales

as Bill Billings

as Cpl. Bob Fitzgerald

as Bob Jones

as Jim Bradley

as Roger Strong

as Dr. Harmon

as John Warren

as Tom Smith

as David Rogers

as Dr. Wilmot Allen

as Clarence Brooks

as Donald Keap

as John Graham

as DeWitt Spense

as Douglas Seward

as Howard Murray

as Frank Harris

as Steele Valiant

as Phillip Smith

as Prentice Tiller

as Dick Frothingham

as Billy Ravensworth

as Joe Blondin / Pierrot

as John Rand

as Harry Brent

as Preston Winfield

as Billy Geary

as George Fowler

as Horace Gray