as Erik, The Phantom
as Dr. Ziska
as Alonzo
as Phroso 'Dead-Legs'
as Dr. Arthur Lamb / The Ape Man
as Tito Beppi
as Professor Echo / Granny O'Grady
as Professor Echo / Grandma O'Grady
as Blizzard
as Paul Beaumont
as Henri Santodos
as Wild Man (uncredited) (unconfirmed)
as (archive footage)
as Farallone
as Dan McCarty
