Brian Donlevy

as Archival Footage

as Self (archive footage)

as Self (archive footage)

as Professor Bernard Quatermass (archive footage)

as (in "The Glass Key") (archive footage)

as Grant Willard

as Mayor Joe Smith

as Detective Lee

as Dragon #3

as Marshal Willett

as Gen. Terry Arnold

as George Wellington

as Ace Ross

as Henri Delambre

as B.D. 'Big Deal' MacPherson

as Kurt Devlynne in 'A Southern Yankee' (arch. foot.) (uncredited)

as Col. Sherman Harrington

as Tom 'T.P.' Paramutual

as Steve Marshall

as Gen. Sloan

as George Manton

as Doc Bender, Trailhand

as Prof. Bernard Quatermass

as Bronc Grierson

as Ed Bates

as Prof. Bernard Quatermass

as Joe McClure

as Charles Quantrill

as Bide Marriner

as Sen. William J. 'Bill' Stephens

as Cmdr. McFarland

as Capt. Dempster

as Nick Palmer

as Quantrill

as John J. Malone

as Walter Williams

as Brigadier General Clifton I. Garnet

as Kurt Devlynn

as Assistant D.A. Louis D'Angelo

as Jim Caighn

as Adam 'Duke' Byron

as Maj. Gen. Leslie R. Groves

as Capt. Vladimir Gregorovitch

as Joe McBride

as George Camrose

as Trampas

as Tony Minnetti

as Richard Henry Dana

as Brian Donlevy

as (archive footage)

as Governor McGinty

as Stefan Dubechek aka Steve Dangos

as Dr. Franticek Svoboda

as Narrator (English version)

as Paul Madvig

as Daniel Shane

as Maj. Geoffrey Caton

as Lieut. Cmdr. Martin Roberts

as Vince Barrows

as General Andrew Jackson

as Harry Melton

as Jim Sherwood

as Bob

as Movie Actor (uncredited)

as Capt. Mercer

as Steely Edwards

as Memphis

as Angus Duncan

as Daniel 'Dan' McGinty

as Grat Dalton

as Barshee

as Kent

as Ralph Callendar

as Sergeant Markoff

as Sid Campeau

as Agent Norman Craig / Red Murray

as Yankee Gordon

as Steve Mitchell

as Chesty Webb

as Gil Warren

as Batiste Duryea

as Bob Kane

as Charles 'Chick' Gardner

as Duffy Giles

as Steve Reardon

as Ace Martin

as Vance

as James Evarts

as Packy Campbell

as Frank Evers

as Knuckles Jacoby

as Spike

as Broken Nose Dawson / Spencer Dutro III

as Charlie the Chauffeur

as Drunk (uncredited)

as Kelly - Reporter (uncredited)

as Unknown

as Harry O'Day

as Richard Courtney

as Ralph

as unknown

as Jim Porter

as Minor Role (Uncredited)

as Self (archive footage)

as Jed Reston

as John Ridges

as General Roger Brandon

as Constable Dale

as Fred Childress

as Sam Marvin

as Self

as Dan Carmody

as Jim