Characters played by Gerald Flood
Mark Bannerman
Characters played by Stewart Guidotti
Peter Blake
Characters played by Denis Goacher
Kurt Swendler
Characters played by Caroline Blakiston
Dr. Ann Boyd
Characters played by Hayden Jones
Professor Westfield
Characters played by Morris Perry
Radio Operator
Radio operator
Characters played by Aubrey Morris
Professor Ludwig Ziebrecken
Professor Ziebrecken
Characters played by Peter Williams
Capt. Payne
Characters played by Barry Letts
Commander Lennard
Characters played by John Trenaman
Helmsman
Characters played by Ian Parsons
Engineer
Characters played by Clive Baxter
N Radio operator
R
Characters played by Peter Gill
N Radio operator
R
Characters played by Marshall Jones
Guard
Characters played by Richard Clarke
Commander Bell
Characters played by Robert Hunter
Guard