Characters played by Marshall Thompson
Maj. Cummings
Characters played by Kynaston Reeves
Prof. R.E. Walgate
Characters played by Kim Parker
Barbara Griselle
Characters played by Stanley Maxted
Col. Butler
Characters played by Terry Kilburn
Capt. Al Chester
Characters played by James Dyrenforth
Mayor
Characters played by Robert MacKenzie
Const. Gibbons
Characters played by Peter Madden
Dr. Bradley
Characters played by Gil Winfield
Dr. Warren
Characters played by Michael Balfour
Sgt. Kasper
Characters played by Launce Maraschal
Melville
Characters played by Meadows White
Ben Adams
Characters played by E. Kerrigan Prescott
Atomic Engineer
Characters played by Lala Lloyd
Amelia Adams
Characters played by Shane Cordell
Nurse
Characters played by Sheldon Allan
Sentry
Characters played by Alexander Archdale
Minister
Characters played by Eddie Boyce
Jacques Griselle
Characters played by Victor Hagan
Villager
Characters played by Victor Harrington
Villager
Characters played by Jack Hetherington
Sergeant in Office
Characters played by Richard Neller
Townsman
Characters played by Tom Watson
Technical Sergeant