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