Major General Thomas F. Waverly (archive footage) (uncredited)

Doctor Schaeffer

Slade

6th Supreme Court Justice

Dr. Land

Ray Collins

Koehler

Dr. Shagetz

Josiah Lowe

Jim Wallace

Arnold Edgarton

Carl Webster

Frederick Wellman

Matthew Keller

Warden Auerbach

Sam Baldwin

Prospector

Chad Harmon

Highwayman

Top Polk

Charles Van Cleve

Judge James C. Brown

Jimmy Noble

Whittier

Colonel Baseman

John Noble

Admiral Fitch

Sala Post

William L. Morgan

Grant Austen

Dr. Hubert Van Der Mal

Mr. Fisher

Harry Burleigh

Anton Rojas

Sheriff Ned Logan

J. Fullerton Weldy

as Rodion Pavlov

Philip Carleton

John W. Rogers

Dr. Adam Royston

Dr. Hugo Thornton

Jade Murphy

Mr. Wyndham

Vice-Adm. Thomas L. Semple

Tim Horn

General Waverly

Police Capt. Michaels

Jesse Q. Grimm

Justus

Phil Baxter

General William J. Palmer

Dan Jefferson

Sam Quade

Yancy

Captain Garvey

Jeff Hassard

Major / Lieutenant Colonel Harvey Stovall

Cliff Holden, alias William Harrah

Dr. Steve Webster

Grant

Kevin Connors

Sgt. John Patterson

John Masters

Paul Baxter

Rodion Pavlov

Torgut Lane

'Pipestone' Ross

Jim Sawyer

David Gibson

Edward Creighton

Brigham Young

Charlie (uncredited)

Charlie Sears

James 'Capper' Regan

Paul Herrick

Dillman

Fred Stevens

Alan Shaw

Fritz Lind

Bob O'Ryan

Armand Louque

Hap Waller

'Honey' Hogan

Arnold

Adam Larey

Jones

Bill Trask

Trooper Jim Burton

Top Harmon

Thurman

Pete

Coach Robbins

Military School Instructor

Deputy (uncredited)

Jim Coakley