Carleton Young
Scott
Henry Brandon
Capt. Lasca
Buster Crabbe
Col. Buck Rogers
C. Montague Shaw
Dr. Huer
Constance Moore
Lt. Wilma Deering
Jackie Moran
George 'Buddy' Wade
Jack Mulhall
Capt. Rankin, Hidden City forces
Anthony Warde
Killer Kane
Guy Usher
Aldar
William Gould
Air Marshal Kragg
Reed Howes
Capt. Roberts
Wheeler Oakman
Lieutenant Patten
Kenne Duncan
Lt. Lacy
Kane Richmond
(archive footage)