Derek Flint

Mr. O'Meyer (as Raymond Danton)

Yellow Shirt

Perry

Prof. Jack Dunn

Capt. Westering

Jimmy Logan

Victor Pappas

Mark / Marco Anderson

Glen Ward

Lucky

Mike Gold

Bryan Cooper / Superdragon

Jeff Larson

Sandokan

Sandokan

Fred Vitale

Fred Linden

Capt. Frank

Jerry 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

Antonito

Roy Turner

Reporter (voice) (uncredited)

John Conrad, alias Johnny Salvo

David Tredman

Blackie

Pete Corder

Little Big Man