Characters played by Stephen McNally
Mike Brand
Characters played by Coleen Gray
Nancy Brand
Characters played by Vic Morrow
Nash
Characters played by Maurice Manson
Dr. Howard Culver
Characters played by Robert Foulk
Jack Fife
Characters played by Dan Sheridan
Ken Archer
Characters played by Will J. White
Al Parker
Characters played by Robert Christopher
Bill
Characters played by Charles J. Conrad
George Knight
Characters played by Ray Ferrell
Eric Brand
Characters played by William Bakewell
Undetermined Role
Characters played by Cappy Carey
Evacuee
Characters played by Jim Cathey
Policeman
Characters played by Robert Colbert
Policeman
Characters played by John Damler
Policeman
Characters played by Bru Danger
Policeman in Car
Characters played by Joe Devlin
Cook
Characters played by Bill Gallant
Policeman
Characters played by Frank Hagney
Guard
Characters played by Louis Hart
Policeman
Characters played by William Hughes
Guard
Characters played by Art Lewis
Reporter
Characters played by Tony Lockridge
Helper
Characters played by John Mitchum
Roadblock Officer
Characters played by Norman Nazarr
Photographer
Characters played by Leo Needham
Photographer
Characters played by James Parnell
Pete
Characters played by Joey Ray
Policeman
Characters played by Edward Rickard
Bit Role
Characters played by Ann Staunton
Customer
Characters played by Richard Warren
Mack
Characters played by Hart Wayne
Evacuee