Major Jake Gatlin
Staff Sergeant Harry Fitz
Frederick Carlson
Dr. Forrest
Prof. Hollander
Greta Marshall
Alex Marshall
Captain Roy Gordon
Helen Carlson
Jeannie Carlson
Martin Carlson
First Officer Frank King - Co-Pilot
Libby
Darryl Cochran
FBI Agent
Stewardess
Gordon Sandler
Sheriff
Arnold Porter
Sgt. Hammond
Maid
Mrs. Wilson Jamison
Ron (uncredited)
Salt Lake Centre Control (uncredited)
Narrator (uncredited)