David Healy

David Allen

Armand Loyster (voice)

Pizza Delivery Man (voice)

Jacob

White Man in Bank/'Biff' in TV Commercial/White Man in Puerto Rico

Waterbury

John Bedlow

Lt. Gen. Ira Eaker USAAF

Father Kerry

Dr. George Hyatt

Herman Webster

Right Door Knocker (voice)

Newscaster

Mayor (as David Healey)

Jack Mervyn

Jack Mervyn

Mr Danvers

Dr. John Watson

Lunar Controller / Frazer (voice)

Shane Weston / Russian Commander / Base 513 Controller / Kramer / Bates / Commander Kovac (voice)

Peter

Juror

1st General

(voice) (credit only)

Jack Harrison

Auctioneer

Hansen

Senator Harbin

Pfc Foster

Theodore Roosevelt

Sam Bundler

Maj. Winters

Comm. Wentworth

Cavendish

Hosea Knowlton

Donat

Radio Announcer (voice) (uncredited)

Houston

Tourist

David Laver

Jason

Frank Mancha

Phelan

Braden

Vandenburg Launch Director (uncredited)

Colonel Adler

McBaine

Raymond Pelley

Joe Franklin

Clergyman

Various Characters (voice)

Ramos

Shane Weston (voice)

Chicago Theatre Manager

Commentator

Jones

David

Geiger Operator / Guard Voice 2 (voice)

Commodore Goddard (voice)

Kruger (voice)

Lunar Controller (voice)

General Cope / Major Brooks (voice)

Frazer (voice)

Jason Smith (voice)

Dr. Mitchell (voice)

Dr. Conrad (voice)

General Rebus (voice)

President Roberts (voice)

Major Moran (voice)

Major Stone (voice)

Colgan / Frazer / Commodore Goddard (voice)

Al Capone

Houston Radar Operator (uncredited)

Halstead

Greg Powell

American on Train

Radio Announcer

Edward Wagner

Greg Powell

Hilton Bass

Newsreel Commentator

Hal Ward