Onder andere met: Jorge Rivero (Peter Crane), Richard Conte (Dr. Stone), Eduardo Fajardo (Basev, il maggiordomo), Lone Fleming (Marta), Pia Giancaro (Elizabeth), Daniela Giordano (Taga), Luis La Torre (Robert), Flora Marrone , Luciano Pigozzi (William Stevens), Anthony Steffen (Tenente Ranieri (as Antonio De Teffè)), Eva Vanicek (Yvonne Chevrel), Pilar Velázquez (Dr. Sarah Turner)