Robert Caulfield
Charles Brubaker
Kay Brubaker
Peter Willis
John Walker
Dr. James Kelloway
Judy Drinkwater
Albain
Hollis Peaker
Walter Loughlin
Sharon Willis
Betty Walker
Elliot Whitter
Control Room Man (as Jim Sikking)
Capsule Communicator
Vice President Price
Mrs. Price
Mrs. Peaker
General Enders
President
Dr. Bergen
Dr. Burroughs
Horace Gruning
Charles Brubaker, Jr.
Sandy Brubaker
Jerry
Alva Leacock
Paul Cunningham
F.B.I. Man Number 1
Man at Hangar Number 1
Man at Hangar Number 2
N.A.S.A. Usher
Bartender
Tracking Technician (as Ken White)
Reporter Number 1
Reporter Number 2
Reporter Number 3
Reporter Number 4
N.A.S.A. Reporter
F.B.I. Man Number 2
F.B.I. Man Number 3
F.B.I. Man Number 4
Policeman
Spectator (uncredited)
Ceremony Guest (uncredited)
Reporter (uncredited)
Secret Service Agent (uncredited)
Reporter outside Kay Brubakers house (uncredited)
Army Helicopter Pilot (uncredited)
Military Officer (uncredited)