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)

Ford Beebe

Saul A. Goodkind