Starring:
Ron Haddrick
as Adam Suisse
episode 1-12
Janice Dinnen
as Jean Walsh
episode 1-12
Bill Levis
as Bernard Walsh
episode 1-12
Michael Thomas
as Peter Cannon
episode 1-10, 12
John Faassen
as Mr. Walsh
episode 1, 3-9, 11, 12
Jessica Noad
as Mrs. Walsh
episode 1, 2, 4, 5, 7, 12
Peter Rowley
as Jeffrey Mason
episode 1
Kit Taylor
as R.M.S.F. Smith
episode 1, 12
Reginald Livermore
as Varossa
episode 2-4, 6-9, 12
Grant Taylor
as Detective Inspector Chisolm
episode 3, 4
Jeffrey Hodgson
as Detective Howell
episode 3, 4
Denys Burrows
as Chief Police Inspector
episode 3, 5-7
Owen Weingott
as Professor Mayer
episode 4-9, 11, 12
Mary Mackay
as Soshun/Ex-Soshun
episode 4, 5/8, 9
Ivor Bromley
as Colonel Nash
episode 5-12
Nigel Lovell
as Group Captain Ponsonby
episode 5
Robert McDarra
as Squadron Leader
episode 5
Keith Buckley
as John Robinson
episode 5
John Unicomb
as Istosin
episode 5, 12
John Fegan
as Policeman
episode 6
Douglas Morgan
as Policeman
episode 6
Henry Gilbert
as Hutchins
episode 6
Bernie Baia
as Matoula
episode 6, 7
Guy le Claire
as Indian Delegate
episode 6
Count Xavier de Gonneville
as French Delegate
episode 6
Vaughan Tracie
as Chauffer
episode 6
Dennis Carroll
as Edward Mayer
episode 7-12
Don Philps
as Wilson
episode 7-12
Ben Gabriel
as Soshun
episode 7-9, 12
Scott Tyler
as Sochun Pilot
episode 7-9, 12
Jack Ford
as Police Sergeant
episode 7-9
Steward Ginn
as Senator Anderson
episode 7
Alex Cann
as Rudolph Lindenberger
episode 8-12
Chuck Kehoe
as Blake
episode 8-12
Desmond Rolfe
as Plumbridge
episode 9
Moray Powell
as Dr. John
episode 9
Richard Meikle
as Dr. Scott
episode 9, 11, 12
Max Osbiston
as Telescope technician [Bob]
episode 9, 11
Peter Wagner
as Telescope technician [Dave]
episode 9, [12]
Kerry McGuire
as Nurse
episode 9
Ken Fraser
as Meldrum
episode 10, 12
Victor Haggith
as Prime Minister's Secretary [Robert]
episode 10, 12
Richard Hughes
as Policeman
episode 10
Ossie Wenban
as Postmaster
episode 10
Kerry Francis
as Soshun Pilot
episode 11, 12
Dennis Doonan
as Blake's Driver
episode 9, 11
Chips Rafferty
as the Prime Minister
episode 12
Ronne Arnold
as Dr. Kamutsa
episode 12
Gordon Glenwright
as Lord Mayor
episode 12
Thelma Scott
as Lady Mayoress
episode 12