as Hugh Maxwell
as Pike
as David Poe Jr (as Hugh E. Thompson)
as Ross Kennion
as Howard Rosedale
as Sir Edward Leighton
as Cecil Andrews
as Robert Sinclair
as John Alden
as Henry Taylor
as John Schuyler
as José María Lavendera
as Gene
as Col. Rudolph von Knorr
as Jeb
as Frank Steele
as John Strickland
as John Arms
as Dr. Maynard Drew
as Dick Washburn
as Prince Hero
as Lawson
as Dorian Vanderveer
as Sir John Dare
as Harold Chase
as Dr. Peter Byrne
as Salvatore, Ruth's father
as George Evans
