Hugh Thompson

as Sir Edward Leighton

as David Poe Jr (as Hugh E. Thompson)

as Dr. Maynard Drew

as John Alden

as Jeb

as Cecil Andrews

as John Schuyler

as John Strickland

as Henry Taylor

as Salvatore, Ruth's father

as José María Lavendera

as Pike

as Lawson

as Gene

as Ross Kennion

as John Arms

as Harold Chase

as Dick Washburn

as Dorian Vanderveer

as Dr. Peter Byrne

as Col. Rudolph von Knorr

as Sir John Dare

as Robert Sinclair

as Hugh Maxwell

as Howard Rosedale

as Prince Hero

as George Evans

as Frank Steele