Jeremy Slate

as Bud

as Francis McKeen

as Jack Chamberlain

as McGregor

as Robert Graham

as Dr. Gerald Swan

as Richard David Rand

as Dr. John Oxford

as Vic

as Tom Bryant

as Capt. Emmet Crawford

as Marshall Henshaw

as Astronaut Capt. Rick Lawrence

as John McClaren

as Stacy

as Sgt. Garrett

as Cliff Rocky Rhodes

as Ross Hazlitt

as Joe Larrabee

as Rafe Norris

as Ron

as Sgt. Pat Cassady

as Lassiter

as Wes

as Emmett Quincy

as Dan

as Daisy

as Self - Guest

as Lon

as Sgt. Pat O'Neill

as Ted Kilgore

as Daniel 'Danny' Carmody

as Hal Random

as Frederick Hoffman

as Captain Kerr

as Pete Gaffney

as Ben Latta

as Erik Carlson

as Gabe Melcroft

as Wally

as Captain Nathan Hale

as Lt. Virgil Scott Boxer

as Gar Aldrich

as Wesley Johnson

as Lt. Asher

as Cpl. Andy March

as Trent Parker

as Keith Holloway

as Dexter Dailey

as Johnny Kane / Benton

as Jim Dawson

as Dr. Anthony Tredman

as Turk

as Hob Harrell

as Larry Lahr

as Karl Lieder

as Elroy Daldran

as Red Foran

as Ed Phillips

as Gunnar Borgstrom

as Jeremy Roman

as Red Dawson

as Soldier (uncredited)

as Policeman at Grand Central Station (uncredited)

as Eric Borgner

as Captain Adams

as Bob Clements

as Chuck Mullord

as Sam Spears

as Bob Lansing

as Philip Andrews

as Frank DeWitt

as Joe Helmer

as Carl Seabrook

as Jess

as Pruit

as Billy

as Web Fraley

as Judd Ward

as Ben Rodman

as Red Quincy (uncredited)

as John McClaren

as George