Maciste contro Ercole nella valle dei guai

Sandra Mondaini as la ninfa Eco Bice Valori as la maga Circe Francesco Mulè as Euristeo Carlo Croccolo as Fetonte Ciccio Ingrassia as Ingrassiade Kirk Morris as Maciste Mario Carotenuto as Comendatore Ave Ninchi as l'indovina Ecubona Gianna Cobelli as serva del re Renato Terra Franco Franchi as Francheo Liana Orfei as Dejanira Gino Buzzanca as capo degli arcieri Gianni Cajafa Rossana Canghiari as Damsel (uncredited) Ombretta Ostenda Raimondo Vianello as Rusteghin Gino Bramieri as Il Osservare Fanfulla as lo scienziato

Mario Mattoli Director Vittorio Metz Story, Screenplay Marcello Marchesi Screenplay, Story