From IMDB:
In 1590, Coronado dispatched a division of one thousand men to find El Dorado, the legendary city of gold. Those men were never seen again. While searching some Baja peninsula caves as part of an archeological expedition, a university professor and his students unwittingly unleash a long dormant curse. They soon find themselves in a life or death battle with an army of skeletal warriors, the undead remnants of Coronado's conquistadors.
Cast (in credits order)
Ross Kelly ... John Barnes
Stefani Marchesi ... Amy Barnes (as Stephanie Marchese)
Miguel Martinez ... Prof. Gordon Vasquez / General De Gama
Mike Hatfield ... Fred Griffith
Malcolm Madera ... Tobias Schuler
Audrey Anderson ... Jenny Crane
Vic Browder ... Matt Kittridge
Jocelyn Tucker ... Kristen McKnew
Jeff Mocho ... Jack Johnson (as Jeffrey James Mocho)
Casey Messer ... Alicia Williamson
Matt Comacho ... Rodruigo Taylor (as Matt Camacho)
Jason E. Hill ... Graham Earl (as Jason Hill)
Brian Lucero ... Spencer Combs
Rated 15 certificate and not to be supplied to persons under that age.