Maj. Saint-Auban
Chief Engineer Quinn
Richard Anderson
Captain John B. Earle
Dr. Innes
Claude Rasmussen
Chief
Col. Murdock
Dr. Richard Malcolm
Spencer Loomis
Philippe de Valmorin (Marcus Brutus)
Dick
US green beret officer
Alan Stewart
Owen Clark
Max Steiner
Jeff Chapman
Lonesome Sailor
Grant
Marquez
Dr. Ralph Wesley
Lucas
Bob Masen
Oscar Goldman
Watch Cmmdr. Clarence Massey
Detective Walter O'Bannion
Interne (uncredited)
Correspondent
Lieutenant Beecher
Jim Boland
Henry Towler
Husband (archive footage)
Lieutenant
Dave Rudabaugh
Dole
Dr. Paul Mallon
Royce Owens
Col. Ralph Josten
Dr. Deering
Bob Lennart
Lt. Jackson
Burton Bradshaw
Marcel
Dr. Wylie
D.A. Douglas
George Oakley
Father Victor Carducci
District Attorney Freiberg
Capt. Daniels
Lt. Bill Horton
George Brubaker
Harry Flack
Himself
Timothy Selfridge
Lyndon Johnson
Tommy
Tom Winters
Carlson
Henry Malvine
Lawrence Danton
John (uncredited)
Self
Dennis Foster
narrator
Thomas Seldon
Maj. Galt
Ken Braddock
Maj. Walters
Deputy Sheriff Jeff Jackson
Harvey Eaton
Thomas
Les Goodwin
Tom McAffee
Tom Austin
Chief George Untermeyer
Reynolds
Dr. Ben Cole
Maj. Gen. George G. Meade
Officer
Fenton Hardy
Roger Goldsmith
Reporter (uncredited)
Lew Bracken
Senator Steve Bryant
Narrator / Captain Bartlett Stiles
Dr. A.M. Richter
General John Doe
Christian Palmer
Art Akers
Eugene Goodman
Buck Fallmont
Joe Simmons
Tom Northcliff
Sam Knight
Gregorio
Edward Lewis
Chief Barney Vilattic
Sgt. Perkins
George Forster
Captain Swain
Colonel Lawrence
Sergeant Rafferty
Rod Matthews
Harry Clark
Oliver Judson
Hayden
Lt. Sloan
Travers
Tom
Lee Talent
Sheriff John Bates
Leonard Taft
Dr. Norman Phelps
Phil Trager
Brig. Gen. Phil Doud
Alex Ramsey
Charles Fillmore
Dr. Latimer
Clifford Banning
Dan Wheaton
Higgins
Mel Trevor
Nathan Springer
Hen Matson
Warden Garreck
Lt. Steve Drumm
Maj. Aaron Coltraine
Henry Churchbridge
David Manning
Bryce Chadwick
Terrence Crown
Jim Kramer
Alan Lloyd
Mr. Duke
Jason Foster
Col. Clinton Hiland
Dean Glenville
Jamison Fillmore
Rod Ballard
Jason Gowdy
Griff
Lt. Col. Clinton Hiland
Walter Conway
Judge Wilson Chase
Blake
Fred Palmer
Sidney Rogers / Zoran Bresnovitch
Percy Hagan
Cmdr. Michael North
Frank Cassidy
Eddie Turtin
Dr. Lensky