All Cast
John Agar
Dr. Matt Hastings
Mara Corday
Stephanie 'Steve' Clayton
Leo G. Carroll
Prof. Gerald Deemer
Nestor Paiva
Sheriff Jack Andrews
Ross Elliott
Joe Burch
Hank Patterson
Josh
Eddie Parker
Paul Lund / Eric Jacobs / Airport Workman
Bert Holland
Barney Russell
Raymond Bailey
Dr. Townsend
Steve Darrell
Andy Andersen
Edwin Rand
Lt. John Nolan
Clint Eastwood
Jet Pilot