When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons
James Philbrook
as Dr. Pete Asilov
Arturo Fernández
as Pete
Soledad Miranda
as Maria
José Bódalo
as Mr. Dorman
Ingrid Pitt
as Sofia Minelli
Antonio Casas
as Prof. Andre
Lola Gaos
as Calliope, the housekeeper
Francisco Piquer
as Stravos
