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