What actors and actresses appeared in Lure of the Triangle - 1977?

The cast of Trio - 1967 includes: Luciano Bartoli Maurizio Bonuglia Luigi Casellato Antonio Chignine Piera Degli Esposti as Sorella Di Anna Cyrus Elias Nico Fidenco Marisa Galvan Wolfgang Hillinger Margarita Puratich Walter Vezza Mariella Zanetti