Shannon
Nick Grant
Ace Jones
John Carter
KEB Agent (uncredited)
Astronaut F. Glenn
Stephen Reinhart
Dr. Bowen
John Dillinger
Tarragoo
Ben Brown
Pvt. V.R. Hackett
Dr. Sid Lackland
Tony Walters
John Gilbert ('Jack') Graham
Pvt. Ben Whitledge
Barney Kovac
C.K. Judd
Tracy Mitchell
Ridge
Phil Davis
Gary Nolan
'Bomber'
Bellboy (uncredited)
Reber
Western Union boy
