John Halliday

as Fitzpatrick

as Seth Lord

as John Morgan

as John Craig

as Thomas Stenborg

as Count de Grissac

as Andre Gallinet

as Gilbert Fullerton

as Carlos Margoli

as John Wellington Blakeford

as Martan Fontes

as The Duke of Towers

as Dr. Theodore Van Wyke

as Sir George Barton

as Marco Turina

as Tom Cleary - Director

as Mr. Radcliffe

as Austin

as Paul Duprey

as Dr. Hedwig

as Dr. John Redmayne

as Jack Brookfield

as Henry Bradford

as Stephen Bessemer

as Ivan Ronnson

as Maximilian Kreig

as Stephen Paige

as Lyndon Fiske

as Albert Hartman

as Arthur Ladden

as Mac

as Gordon St. Claire

as Prof. David Mathews

as Dexter Burroughs

as Ambrose Applejohn

as Richard Kent

as Sergei Krasnoff

as Sir Guy Harrington

as Henry D. Graham

as Dr. Franklin

as James 'Jimmy' Dammier

as Michael Cummins

as Dorval

as Jeff Hunter

as Himself - Golfer

as John Remington

as Brentwood Parr

as Skip Cornwall

as Daniel Garford

as Jim Winthrop

as Paul La France

as Jim Dempsey