Characters played by Murray Kash
Col. Raeburn
2nd Martian colonist
Curator
Dr. Mall
Gallia's aide
Game warden
Giant
Mac
Martian miner
Sam Marsden
Simba's aide
Characters played by Ronnie Stevens
Husky
Slim
Prof. Haggarty
Zeffer's assistant
Jim Barratt
Joe
Radio operator
Dr. Brown
Dr. Marshall
Dr. Smith
Moon Observatory scientist
1st Lumina
3rd Duo
Aszom
Brig
Brog's deputy
Cloud Dispersal officer
Coastguard Station 3
Dara
Dr. Duncan
Dr. Mason
Duty Officer
Duty Officer Roberts
Forger
Interplanetary news reporter
Jo
Jones
Kolig's aide
Man in Tokyo
Martian President
Meteorological Officer
Miga's aide
Operator
President's aide
Presidential aide
Replacement secretary
Rocket base
Saturnian pilot
Tirig's accomplice
Travel agent
Tyro
UGF Major
UGF Rocket Base
Venusian
Williams
Characters played by Dick Vosburgh
Capt. Larry Dart
Gen. Smith
Martian President
Prof. Zeffer
Venusian President
Mak
Robot
Robots
Cdr. Brog
Charlie
Dr. Brown
Saturnians
Scientist
1st Martian colonist
Berridge
Doctor
Dr. Roberts
Dr. Smith
Duncan's assistant
Duty Officer
Gallia
Jackson
Jano
Katy
Kolig
Lead forger
Lizzie
Maj. Valla
Mall's assistant
Marog
Martian
Martian artist
Martian primitive
Neptunian
Newsreader
Riga
Saturnian Leader
Simba
Tara
Tirig
Venusian
Characters played by Libby Morris
Marla
Gabbler
Cassiopeia
Tyro
'Mr. Bell'
2nd Duo
2nd Lumina
Accomplice
Duo leader
Duo scientist
Fisherman
French President
Irya
Martian
Neptunian
Patra
Characters played by Ysanne Churchman
Marla
Cassiopeia
Neptunian
Borse
Cresta
Duo leader
Duos
Miga
Prof. Borra
Space HQ
Venusian
Characters played by Mary Dean
Maggie Applegate