Ray Danton

as Derek Flint

as Mr. O'Meyer (as Raymond Danton)

as Ralph Carson

as Yellow Shirt

as Chester Sierra

as Perry

as Prof. Jack Dunn

as Capt. Westering

as Juan

as Jimmy Logan

as Victor Pappas

as Kane

as Mark / Marco Anderson

as Jimmy

as Akamai

as Ron Colby

as Pietro Bertelli

as Glen Ward

as Lucky

as Mike Gold

as Bryan Cooper / Superdragon

as Glen Frye

as Sonny

as Reed Clayton

as Jeff Larson

as Sandokan

as Vincent Carver

as Sandokan

as Fred Vitale

as Fred Linden

as Capt. Frank

as Lt. Steve Hamilton

as Jerry Black

as George Raft

as 'Legs' Diamond

as Clem Marker

as Jack 'Legs' Diamond

as Bay Husack

as Sayapi, Gall's Nephew

as Oscar Wetzel

as Stanley Belmont

as Lt. Joel Brady

as Ensign Dennis Higgins

as Tonio

as Spade Stuart

as John Howard

as Blacky Rude

as Duke McGann

as Antonito

as Roy Turner

as Reporter (voice) (uncredited)

as John Conrad, alias Johnny Salvo

as David Tredman

as Blackie

as Pete Corder

as Little Big Man

as Nick Slade

as Co-Pilot

as Eric Bartholomew

as Jean Lafitte

as Callaghan