Buster Crabbe

as Col. Buck Rogers

Constance Moore

as Lt. Wilma Deering

Jackie Moran

as George 'Buddy' Wade

Anthony Warde

as Killer Kane

Jack Mulhall

as Capt. Rankin, Hidden City forces

Philson Ahn

as Prince Tallen

C. Montague Shaw

as Dr. Huer

Guy Usher

as Aldar

William Gould

as Air Marshal Kragg

Henry Brandon

as Capt. Lasca

Kenne Duncan

as Lt. Lacy

Reed Howes

as Capt. Roberts

Wheeler Oakman

as Lieutenant Patten

Carleton Young

as Scott

Kane Richmond

as (archive footage)