Derek Flint
Mr. O'Meyer (as Raymond Danton)
Yellow Shirt
Prof. Jack Dunn
Capt. Westering
Victor Pappas
Mark / Marco Anderson
Glen Ward
Mike Gold
Bryan Cooper / Superdragon
Jeff Larson
Sandokan
Sandokan
Fred Vitale
Fred Linden
Capt. Frank
Jerome Black
George Raft
'Legs' Diamond
Clem Marker
Jack 'Legs' Diamond
Bay Husack
Sayapi, Gall's Nephew
Oscar Wetzel
Stanley Belmont
Lt. Joel Brady
Ensign Dennis Higgins
John Howard
Roy Turner
Reporter (voice) (uncredited)
John Conrad, alias Johnny Salvo
David Tredman
Blackie
Pete Corder
Little Big Man
