Patric Knowles

as Douglas Whitehead

as Mr. Southcott

as Henry Tunstall

as Captain Grant

as Lindsay Woolsey

as Josef Cartier

as Charles de Marigny

as Wayne Vincent

as Julian March

as Edwards

as Capt. Ben Waldridge

as Harry Keith

as Jim Fiske

as Dr. Roger Gretorex

as Duc le Chandre

as Cmdr. Brady

as Brett Harwood Earl of Carstairs

as Dr. William 'Bill' Burns

as Dr. Frank Mannering

as Jim Turner

as Doctor Enright

as Dr. Paul Dupin

as Private Detective Jerry Church

as Frank Andrews

as Ivor Morgan

as Dudley Horn

as Judson Ellis

as Denny Williams

as Norman French

as Patterson 'Pat' Buckley

as Henry Grant Jr.

as Captain Perry Vickers

as Chris Jensen