as Technician #2
as Dan Daubrey
as Engineer (uncredited)
as Deputy Sheriff Hank Matson (as Brett Parker)
as College Professor
as Iceman
as Frank Parker - Tenor Singer
as Hardin
as Minister
as Danny O'Day
as Hans - Officer #2 (uncredited)
as Otis Berne
as Ed
as Guard Russell
as Countdown Technician
as Tom Brown
as Zed
as Captain
as Vic Hancock
as Jerry Wade
as FBI Agent
as Dr. Winton Weiss
as Mitchell Demming
as Lane Curran
as Father Jeremy Hogan
as Clifford
as Commander
as Harter
