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