as Hal Walker
as Dr. Wells
as Mortimer Appleby
as Hugo Mertons
as Alexander Chapman
as Henri Cocteau
as McGuirk
as Bob Flint
as 'Gentleman Jim' Slade
as Struve
as Capt. Juan Ramon
as 'Silver Sam' McGee
as 'Flash' Jim Purdy
as Van Tyle
as Van Dyke Tarleton
