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