Arthur Stuart Hull
— Jack Morrell
Douglas MacLean
— Dudley Ainsworth
Patsy Ruth Miller
— Margarita
Stanhope Wheatcroft
— Leopoldo
Eulalie Jensen
— Donna Theresa
Lee Shumway
— Purser of S.S. President (as L.C. Shumway)
Fred Kelsey
— Agent John J. Doyle
George Periolat
— Don Rafael Desschado
Eric Mayne
— Admiral Rutledge
Bert Hadley
— Servant