Cast
C. Montague Shaw
Prof. Huer
William Gould
Air Marshal Kragg
Eddie Parker
Council-Room Guard
Anthony Warde
Killer Kane
Lane Chandler
Army Official at Wade's Lab
Henry Brandon
Capt. Laska
Wade Boteler
Prof. Wade
Al Bridge
Dynamo Room Floor Guard
Cyril Delevanti
Saturnian Councilman
Jack Mulhall
Capt. Rankin
Stanley Price
Capt. Martin / Zugg Man
Wheeler Oakman
Lt. Patten
Kenne Duncan
Lt. Lacy
Karl Hackett
Councillor Krenko
Theodore Lorch
Kane's Council Member
Buster Crabbe
Buck Rogers
Jackie Moran
George 'Buddy' Wade
Guy Usher
Aldar
Frank Ellis
Kane Soldier
Kenneth Harlan
Reporter at Wade's Lab
Constance Moore
Wilma Deering
John Harmon
Hidden City Air Controller
David Sharpe
Kane Pilot / Hidden City Sentry / Saturnian Lieutenant
Carleton Young
Scott
Eddy Chandler
Captain of Dirigible