"The elderly O'Hara, owner of a fortune in emeralds, offers half of his estate to whoever manages to get him out of jail. The adventurer Don Casey arrives in the town of Guaynas, ruled by the tyrant Villarde, to fulfill that wish."
John Richardson
as Daniel
Fernando Sancho
as El Lobo
Eduardo Fajardo
as Villiarda
Gloria Milland
as Margot
Xan das Bolas
as Padre O’Hara
José María Caffarel
as Pietroff
Mia Genberg
as
Evi Marandi
Luis Barboo
Patrizia Giammei
Luis Induni
Víctor Israel
Delfi Mauro
Joaquín Romero Marchent
Screenplay
Gianni Ferrio
Original Music Composer
Jeff Lassiter
Novel
Giancarlo Cappelli
Editor
Director
Luis Gaspar
Federico G. Larraya
Director of Photography
Lewis E. Ciannelli
Mario Morra
Mercedes Alonso