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