Characters played by Ray Milland
Guy Carrell
Characters played by Hazel Court
Emily Gault
Characters played by Richard Ney
Miles Archer
Characters played by Heather Angel
Kate Carrell
Characters played by Alan Napier
Dr. Gideon Gault
Characters played by John Dierkes
Sweeney
Characters played by Dick Miller
Mole (as Richard Miller)
Characters played by Clive Halliday
Judson
Characters played by Brendan Dillon
Minister
